BPR Supra X 125 PGM-FI [PDF]

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ANF125/M-5 ADDENDUM



ANF125/M-5 ADDENDUM



IMPORTANT SAFETY NOTICE Indicates a strong possibility of severe personal injury or death if instructions are not followed. CAUTION:



Indicates a possibility of equipment damage if instructions are not followed.



NOTE:



Gives helpful information.



Detailed descriptions of standard workshop procedures, safety principles and service operations are not included. It is important to note that this manual contains some warnings and cautions against some specific service methods which could cause PERSONAL INJURY to service personnel or could damage a vehicle or render it unsafe. Please understand that those warnings could not cover all conceivable ways in which service, whether or not recommended by Honda, might be done or of the possibly hazardous consequences of each conceivable way, nor could Honda investigate all such ways. Anyone using service procedures or tools, whether or not recommended by Honda, must satisfy himself thoroughly that neither personal safety nor vehicle safety will be jeopardized by the service methods or tools selected.



TYPE CODE • Throughout this manual, the following abbreviations are used to identify individual model.



CODE



AREA TYPE



ANF1255-III TH



THAILAND (Kickstarter only type)



ANF125M5-III TH



THAILAND (Kickstarter and electric starter motor type)



24. ANF125/M-5 ADDENDUM ANF125/M-5 ADDENDUM



HOW TO USE THIS MANUAL This addendum contains information for the ANF125/ M-5. Refer to the ANF125 Shop Manual (62KPHAM2, 62KPHLM3, 62KTMFM5) for service procedures and data not included in this addendum. ALL INFORMATION, ILLUSTRATIONS, DIRECTIONS AND SPECIFICATIONS INCLUDED IN THIS PUBLICATION ARE BASED ON THE LATEST PRODUCT INFORMATION AVAILABLE AT THE TIME OF APPROVAL FOR PRINTING, Honda Motor Co., Ltd. RESERVES THE RIGHT TO MAKE CHANGES AT ANY TIME WITHOUT NOTICE AND WITHOUT INCURRING ANY OBLIGATION WHATEVER. NO PART OF THIS PUBLICATION MAY BE REPRODUCED WITHOUT WRITTEN PERMISSION. THIS MANUAL IS WRITTEN FOR PERSONS WHO HAVE ACQUIRED BASIC KNOWLEDGE OF MAINTENANCE ON Honda MOTORCYCLES, MOTOR SCOOTERS OR ATVS. Honda Motor Co., Ltd. SERVICE PUBLICATION OFFICE



Date of Issue: March, 2005 © Honda Motor Co., Ltd.



ANF125/M-5 ADDENDUM



CONTENTS MODEL IDENTIFICATION ............................................. 24-1 SPECIFICATIONS .......................................................... 24-2 TORQUE VALUES ......................................................... 24-9 TOOLS ......................................................................... 24-12 LUBRICATION & SEAL POINTS ................................. 24-14 CABLE & HARNESS ROUTING .................................. 24-17 MAINTENANCE SCHEDULE ...................................... 24-24 FUEL LINE ................................................................... 24-25 ENGINE IDLE SPEED .................................................. 24-25 TECHNICAL FEATURE ABSOLUTE PRESSURE FUEL SUPPLY SYSTEM ........... 24-26 FUEL SYSTEM COMPONENT LOCATION ................ 24-27 PGM-FI SERVICE INFORMATION .............................. 24-28 PGM-FI TROUBLESHOOTING ................................... 24-28 PGM-FI SYSTEM LOCATION ..................................... 24-29 PGM-FI SYSTEM DIAGRAM ...................................... 24-30 PGM-FI SELF-DIAGNOSIS INFORMATION ............... 24-31 MIL CODE INDEX ........................................................ 24-34 ECM POWER/GROUND INSPECTION ....................... 24-36 SENSOR UNIT POWER/ GROUND CIRCUIT INSPECTION ............................ 24-38 MIL TROUBLESHOOTING .......................................... 24-40 FUEL LINE INSPECTION ............................................ 24-54 FUEL PUMP ................................................................. 24-58 FUEL TANK ................................................................. 24-60 THROTTLE BODY/SENSOR UNIT .............................. 24-61 ECM (ENGINE CONTROL MODULE) ......................... 24-69 INJECTOR ................................................................... 24-69 BANK ANGLE SENSOR .............................................. 24-70



EOT (ENGINE OIL TEMPERATURE) SENSOR .......... 24-71 CHARGING SYSTEM DIAGRAM ............................... 24-72 CHARGING SYSTEM TROUBLESHOOTING ............. 24-73 IGNITION SYSTEM DIAGRAM .................................. 24-74 ELECTRIC STARTER SYSTEM DIAGRAM ................. 24-75 LIGHTS/METERS/ SWITCHES SYSTEM LOCATION .................... 24-76 FUEL METER/FUEL LEVEL SENSOR ......................... 24-77 WIRING DIAGRAMS ANF125 ............................................................ 24-79 ANF125M ......................................................... 24-80 TROUBLE SHOOTING ENGINE DOES NOT START OR IS HARD TO START ................................... 24-81 ENGINE LACKS POWER ................................. 24-82 POOR PERFORMANCE AT LOW AND IDLE SPEED ..................................................... 24-83 POOR PERFORMANCE AT HIGH SPEED ....... 24-84



ANF125/M-5 ADDENDUM



MODEL IDENTIFICATION This manual covers 2 types of ANF125 models: • ANF125: kick starter and Programmed Fuel Injection (PGM-FI) • ANF125M: kick starter, electric starter motor and Programmed Fuel Injection (PGM-FI)



FRAME SERIAL NUMBER



FRAME NUMBER The frame serial number is stamped on the right side of the steering head.



ENGINE SERIAL NUMBER



ENGINE NUMBER The engine serial number is stamped on the lower left side of the crankcase.



THROTTLE BODY IDENTIFICATION NUMBER



THROTTLE BODY IDENTIFICATION NUMBER The throttle body identification number is stamped on the front side of the throttle body.



24-1



ANF125/M-5 ADDENDUM



SPECIFICATIONS GENERAL SPECIFICATIONS



ITEM DIMENSIONS



Overall length Overall width Overall height Wheelbase Seat height Footpeg height Ground clearance Curb weight



FRAME



Frame type Front suspension Front axle travel Rear suspension Rear axle travel Rear damper Front tire size Rear tire size Front brake Rear brake Caster angle Trail length Fuel tank capacity



ENGINE



Bore and stroke Displacement Compression ratio Valve train Intake valve Exhaust valve



ANF125 ANF125M



opens closes opens closes



Lubrication system Oil pump type Cooling system Air filtration Crankshaft type Cylinder arrangement



24-2



at 1 mm (0.04 in) lift



1,881 mm (74.1 in) 706 mm (27.8 in) 1,081.5 mm (42.58 in) 1,239 mm (48.8 in) 761 mm (30.0 in) 266 mm (10.5 in) 130 mm (5.1 in) 100.1 kg (220.7 lbs) 102.5 kg (226.0 lbs) Back bone type Telescopic fork 80.5 mm (3.17 in) Swingarm 81.8 mm (3.22 in) Both side operation tube type 60/100–17M/C 33P 70/90–17M/C 43P Hydraulic disc brake Mechanical leading trailing 26° 30' 68 mm (2.7 in) 3.7 liter (0.98 US gal 0.81 lmp gal) 52.4 x 57.9 mm (2.06 x 2.28 in) 124.8 cm3 (7.61 cu-in) 9.3 : 1 2 valve, single chain driven SOHC 5° BTDC 22° ABDC 37° BBDC –3° ATDC Forced pressure and wet sump Trochoid Air cooled Paper filter Assembled type Single cylinder inclined 80° from vertical



ANF125/M-5 ADDENDUM



GENERAL (Cont'd)



ITEM



SPECIFICATIONS



CARBURATION



Type Throttle bore



PGM-FI (Programmed Fuel Injection) 22 mm (0.9 in)



DRIVE TRAIN



Clutch system Clutch operation system Transmission Primary reduction Final reduction Gear ratio



Multi-plate, wet Automatic centrifugal type Constant mesh, 4-speed 3.350 (67/20) 2.428 (34/14) 2.500 (35/14) 1.550 (31/20) 1.150 (23/20) 0.923 (24/26) Left foot operated return system (rotary system; only when the motorcycle is not running) N-1-2-3-4 (-N)



1st 2nd 3rd 4th



Gearshift pattern



ELECTRICAL



Ignition system Starting system Charging system Regulator/rectifier Lighting system



ANF125 ANF125M



Full transistor digital ignition Kickstarter Kickstarter and electric starter motor Single phase output alternator SCR opened/single phase, half wave rectification Alternator



24-3



ANF125/M-5 ADDENDUM Unit: mm (in)



LUBRICATION SYSTEM ITEM Engine oil capacity



STANDARD At draining



0.7 liter (0.7 US qt, 0.6 lmp qt)



—



At disassembly



0.9 liter (1.0 US qt, 0.8 lmp qt)



—



Honda 4-stroke oil or equivalent motor oil API service classification SE, SF or SG Viscosity: SAE 10W-30



—



Recommended engine oil



Oil pump rotor



SERVICE LIMIT



Tip clearance



0.20 (0.008)



—



Body clearance



0.15 – 0.21 (0.006 – 0.008)



0.26 (0.010)



Side clearance



0.03 – 0.09 (0.001 – 0.003)



0.15 (0.005)



FUEL SYSTEM (Programmed Fuel Injection) ITEM



SPECIFICATION



Throttle body identification number



GQR0A 1,400 ± 100 min–1 (rpm)



Idle speed



2 – 6 mm (0.1 – 0.2 in)



Throttle grip free play EOT (Engine Oil Temperature) sensor resistance



20°C/68°F



2.5 – 2.8 kΩ



100°C/212°F



0.21 – 0.22 kΩ 10.3 – 11.3 Ω



Fuel injector resistance (at 20°C/68°F)



294 kPa (3.0 kgf/cm2, 43 psi)



Fuel pressure



13.9 cm3 (0.47 US oz, 0.49 lmp oz) minimum/10 seconds



Fuel pump flow (at 12V)



Unit: mm (in)



CYLINDER HEAD/VALVES STANDARD



ITEM



2



1,275 kPa (13.0 kgf/cm , 185 psi) at 600 min–1 (rpm)



Cylinder compression



—



Cylinder head warpage Valve, valve guide



Valve clearance



—



EX



0.05 ± 0.02 (0.002 ± 0.001)



—



IN



4.975 – 4.990 (0.1959 – 0.1965)



4.965 (0.195)



EX



4.955 – 4.970 (0.1951 – 0.1957)



4.945 (0.195)



IN



5.000 – 5.012 (0.1969 – 0.1973)



5.03 (0.198)



EX



5.000 – 5.012 (0.1969 – 0.1973)



5.03 (0.198)



IN



0.010 – 0.037 (0.0004 – 0.0015)



0.065 (0.0026)



EX



0.030 – 0.057 (0.0012 – 0.0022)



0.085 (0.0033)



IN/EX



1.0 (0.04)



1.6 (0.06)



IN/EX



37.62 (1.481)



35.8 (1.41)



Rocker arm I.D.



IN/EX



10.000 – 10.015 (0.3937 – 0.3943)



10.10 (0.398)



Rocker arm shaft O.D.



IN/EX



9.972 – 9.987 (0.3926 – 0.3932)



9.92 (0.391)



Cam lobe height



IN



32.278 – 32.518 (1.2708 – 1.2802)



31.94 (1.257)



EX



32.121 – 32.361 (1.2646 – 1.2741)



31.79 (1.252)



Stem-to-guide clearance Valve seat width Valve spring free length



24-4



0.05 (0.002)



0.05 ± 0.02 (0.002 ± 0.001)



Valve guide I.D.



Camshaft



—



IN



Valve stem O.D.



Rocker arm/shaft



SERVICE LIMIT



ANF125/M-5 ADDENDUM Unit: mm (in)



CYLINDER/PISTON ITEM Cylinder



STANDARD



I.D.



52.405 – 52.415 (2.0632 – 2.0636)



SERVICE LIMIT 52.445 (2.0648)



Out of round



—



0.10 (0.004)



Taper



—



0.10 (0.004)



Warpage



—



0.05 (0.002)



Piston mark direction



“IN” mark facing toward the intake side



Piston O.D.



52.362 – 52.400 (2.0615 – 2.0630)



Piston O.D. measurement point



10 mm (0.4 in) from bottom of skirt



Piston pin bore I.D.



13.002 – 13.008 (0.5119 – 0.5121)



13.03 (0.513)



Piston pin O.D.



12.994 – 13.000 (0.5116 – 0.5118)



12.98 (0.511)



Piston-to-piston pin clearance



0.002 – 0.014 (0.0001 – 0.0006)



0.075 (0.0030)



Piston ring-to-ring groove clearance



Top



0.030 – 0.065 (0.0012 – 0.0026)



0.10 (0.004)



Second



0.015 – 0.050 (0.0006 – 0.0020)



0.09 (0.004)



Piston ring end gap



Top



0.10 – 0.30 (0.004 – 0.012)



0.5 (0.02)



Second



0.10 – 0.30 (0.004 – 0.012)



0.5 (0.02)



Oil (side rail)



0.20 – 0.70 (0.008 – 0.028)



1.1 (0.04)



Cylinder-to-piston clearance



0.005 – 0.053 (0.0002– 0.0021)



0.159 (0.0063)



Connecting rod small end I.D.



13.016 – 13.034 (0.5124 – 0.5131)



13.05 (0.514)



Connecting rod-to-piston pin clearance



0.016 – 0.040 (0.0006 – 0.0016)



0.07 (0.003)



Piston, piston rings



ITEM



Centrifugal clutch



—



Unit: mm (in)



CLUTCH/GEARSHIFT LINKAGE Manual clutch



— 52.292 (2.0587)



STANDARD



Disk thickness



2.5 – 2.7 (0.098 – 0.106)



Plate warpage



—



SERVICE LIMIT 2.2 (0.09) 0.20 (0.008)



Clutch spring free length



27.4 (1.08)



26.8 (1.06)



Clutch outer guide O.D.



22.959 – 22.980 (0.9039 – 0.9047)



22.940 (0.9031)



Clutch outer I.D.



23.000 – 23.021 (0.9055 – 0.9063)



23.07 (0.908)



Clutch drum I.D.



104.0 – 104.2 (4.09 – 4.10)



104.3 (4.11)



Clutch weight lining thickness



1.5 (0.06)



1.0 (0.04)



One-way clutch drum I.D.



42.000 – 42.020 (1.6535 – 1.6543)



42.04 (1.655)



One-way clutch roller O.D.



4.990 – 5.000 (0.1965 – 0.1969)



4.97 (0.196)



Primary drive gear I.D.



21.030 – 21.058 (0.8280 – 0.8291)



21.11 (0.831)



Crankshaft O.D. at primary drive gear



20.967 – 20.980 (0.8255 – 0.8260)



20.92 (0.824)



3.35 (0.132)



2.5 (0.10)



Clutch brake lining thickness



24-5



ANF125/M-5 ADDENDUM Unit: mm (in)



CRANKSHAFT/TRANSMISSION/KICKSTARTER ITEM Crankshaft



STANDARD



Connecting rod side clearance



0.10 – 0.35 (0.004 – 0.014)



0.60 (0.024)



Connecting rod radial clearance



0.008 (0.0003)



0.05 (0.002) —



Runout Transmission



Shift fork/ Shift drum



Gear I.D.



M2,3



17.000 – 17.018 (0.6693 – 0.6700)



17.04 (0.671)



C1



18.000 – 18.018 (0.7087 – 0.7094)



18.04 (0.710)



C4



20.000 – 20.021 (0.7874 – 0.7882)



20.040 (0.7890)



C1



17.966 – 17.984 (0.7073 – 0.7080)



17.94 (0.706)



Bushing I.D.



C1



15.000 – 15.018 (0.5906 – 0.5913)



15.04 (0.592)



Gear-to-bushing clearance



C1



0.016 – 0.052 (0.0006 – 0.0020)



0.1 (0.004)



Mainshaft O.D.



M2,3



16.966 – 16.984 (0.6680 – 0.6687)



16.95 (0.667)



Countershaft O.D.



C1



14.966 – 14.984 (0.5892 – 0.5899)



14.95 (0.589)



Gear-to-shaft clearance



M2,3



0.016 – 0.052 (0.0006 – 0.0020)



0.09 (0.004)



Bushing-to-shaft clearance



C1



0.016 – 0.052 (0.0006 – 0.0020)



0.09 (0.004)



Shift fork I.D.



10.000 – 10.018 (0.3937 – 0.3944)



10.07 (0.396)



Shift fork claw thickness



4.93 – 5.00 (0.194 – 0.197)



4.90 (0.193)



Shift fork shaft O.D.



9.986 – 9.995 ( 0.3931– 0.3935)



9.93 (0.391)



Left



23.959 – 23.980 (0.9433 – 0.9441)



24.07 (0.948)



Right



27.959 – 27.980 (1.1007 – 1.1016)



28.08 (1.106)



Left



24.000 – 24.033 (0.9449 – 0.9462)



23.98 (0.944)



Right



28.000 – 28.021 (1.1024 – 1.1032)



27.98 (1.102)



Pinion I. D.



20.000 – 20.021 (0.7874 – 0.7882)



20.08 (0.791)



Shaft O.D.



19.959 – 19.980 (0.7858 – 0.7866)



19.94 (0.785)



Shift drum journal I.D.



24-6



0.10 (0.004)



Bushing O.D.



Shift drum O.D.



Kick starter



SERVICE LIMIT



ANF125/M-5 ADDENDUM Unit: mm (in)



FRONT WHEEL/SUSPENSION/STEERING ITEM Minimum tire tread depth Cold tire pressure



—



To the indicator



2



225 kPa (2.25 kgf/cm , 33 psi)



—



Driver and passenger



225 kPa (2.25 kgf/cm2, 33 psi)



—



—



0.20 (0.008)



Radial



—



2.0 (0.08)



Axial



—



2.0 (0.08)



Wheel hub-to-rim distance Fork



SERVICE LIMIT



Driver only



Axle runout Wheel rim runout



STANDARD



19.5 ± 1 (0.77 ± 0.04) Spring free length



316.3 (12.45)



Spring direction



With the tapered end facing down



310.0 (12.20) —



Tube runout



—



Fluid level



68.5 (2.70)



— 3



70.0 ± 1 cm (2.37 ± 0.03 US oz, 2.46 ± 0.04 lmp oz)



Minimum tire tread depth Driver only Driver and passenger



STANDARD



SERVICE LIMIT



—



To the indicator



2



—



2



—



250 kPa (2.50 kgf/cm , 36 psi) 250 kPa (2.50 kgf/cm , 36 psi)



Axle runout



—



0.20 (0.008)



Radial



—



2.0 (0.08)



Axial



—



2.0 (0.08)



Wheel hub-to-rim distance



Brake



10.0 ± 1 (0.39 ± 0.04)



—



Size/link



420 – 104



—



Slack



25 – 35 (1.0 – 1.4)



—



Brake drum I.D.



110.0 (4.33)



Brake pedal free play



20 – 30 (0.8 – 1.2)



111.0 (4.37)



ITEM



STANDARD DOT 3 or 4



Brake pad wear indicator Brake disc thickness Brake disc runout



— Unit: mm (in)



HYDRAULIC BRAKE Specified brake fluid



—



Unit: mm (in)



ITEM



Drive chain



0.20 (0.008)



Honda Ultra Cushion Oil No.10



REAR WHEEL/BRAKE/SUSPENSION



Wheel rim runout



—



Recommended fork fluid Fluid capacity



Cold tire pressure



—



SERVICE LIMIT —



— 4.0 (0.157)



To groove 3.5 (0.138)



—



0.30 (0.012)



Master cylinder I.D.



12.700 – 12.743 (0.5000 – 0.5017)



12.755 (0.5022)



Master piston O.D.



12.657 – 12.684 (0.4983 – 0.4994)



12.645 (0.4978)



Caliper cylinder I.D.



25.400 – 25.450 (1.000 – 1.002)



25.460 (1.002)



Caliper piston O.D.



25.318 – 25.368 (0.9968 – 0.9987)



25.31 (0.996)



24-7



ANF125/M-5 ADDENDUM



BATTERY/CHARGING SYSTEM SPECIFICATIONS



ITEM Battery



Capacity



ANF125



12 V – 2.5 Ah



ANF125M



12 V – 3.5 Ah



Current leakage Voltage Charging ANF125 current ANF125M



0.1 mA max. Fully charged



13.0 – 13.2 V



Needs charging



Below 12.3 V



Normal



0.3 A/5 – 10 h



Quick



3.0 A/0.5 h



Normal



0.4 A/5 – 10 h



Quick Alternator



3.0 A/0.5 h 0.150 kw/5,000 min–1 (rpm)



Capacity Charging coil resistance (20°C/68°F)



0.2 – 1.0 Ω



Unit: mm (in)



IGNITION SYSTEM ITEM



SPECIFICATIONS NGK



DENSO



Standard



CPR6EA-9



U20EPR9



Optional



CPR7EA-9



U22EPR9



Spark plug



0.80 – 0.90 mm (0.031 – 0.035 in)



Spark plug gap Ignition coil peak voltage



100 V minimum



Ignition pulse generator peak voltage



0.7 V minimum



Ignition timing



10° BTDC at idle



Unit: mm (in)



ELECTRIC STARTER ITEM



STANDARD



SERVICE LIMIT 3.5 (0.14)



10.0 – 10.05 (0.39 – 0.40)



Starter motor brush length



LIGHTS/METERS/SWITCHES ITEM Bulbs



Headlight (Hi/low beam) Brake/taillight



12 V – 18/5 W 12 V – 10 W x 2



Rear turn signal light



12 V – 10 W x 2



Turn signal indicator High beam indicator Gear position indicator



24-8



12 V – 18/18W x 2



Front turn signal light Meter light



Fuse



SPECIFICATIONS



LED LED x 2 LED LED x 4



Neutral indicator



LED



PGM-FI malfunction indicator



LED



Main



15 A



Sub



10 A



ANF125/M-5 ADDENDUM



TORQUE VALUES TORQUE N·m (kgf·m, lbf·ft)



FASTENER TYPE 5 mm hex bolt and nut 6 mm hex bolt and nut 8 mm hex bolt and nut 10 mm hex bolt and nut 12 mm hex bolt and nut



5 (0.5, 3.6) 10 (1.0, 7) 22 (2.2, 16) 34 (3.5 , 25) 54 (5.5, 40)



TORQUE N·m (kgf·m, lbf·ft)



FASTENER TYPE 5 mm screw 6 mm screw 6 mm flange bolt (8 mm head) 6 mm flange bolt (10 mm head) and nut 8 mm flange bolt and nut 10 mm flange bolt and nut



4 (0.4, 2.9) 9 (0.9, 6.5) 9 (0.9, 6.5) 12 (1.2, 9) 26 (2.7, 20) 39 (4.0, 29)



• Torque specifications listed below are for important fasteners. • Others should be tightened to standard torque values listed above. NOTES: 1. 2. 3. 4.



Apply a locking agent to the threads. Apply engine oil to the threads and seating surfaces. U-nut. ALOCK bolt:replace with a new one.



ENGINE ITEM MAINTENANCE: Oil drain bolt Crankshaft hole cap Timing hole cap Valve adjuster lock nut Oil centrifugal filter cover bolt Clutch adjuster lock nut Spark plug LUBRICATION SYSTEM: Oil pump cover bolt FUEL SYSTEM (Programmed Fuel Injection): EOT (Engine Oil Temperature) sensor Intake manifold mounting bolt ENGINE REMOVAL/INSTALLATION: Drive sprocket fixing plate bolt CYLINDER HEAD/VALVES: Cylinder head cap nut Cam sprocket cover bolt Cam sprocket bolt Cam chain tensioner lifter plug Plunger set bolt CLUTCH/GEARSHIFT LINKAGE: Shift drum stopper arm bolt Shift return spring pin Gear shift cam plate socket bolt Centrifugal clutch lock nut Clutch lifter plate flange bolt Manual clutch center lock nut ALTERNATOR/STARTER CLUTCH: Flywheel flange nut Starter clutch outer mounting socket bolt Stator mounting bolt Ignition pulse generator mounting bolt



Q’TY



THREAD DIA. (mm)



TORQUE N·m (kgf·m, lbf·ft)



1 1 1 2 4 1 1



12 30 14 5 5 8 10



24 (2.4, 17) 8 (0.8, 5.8) 6 (0.6, 4.3) 9 (0.9, 6.5) 5 (0.5, 3.6) 12 (1.2, 9) 16 (1.6, 12)



2



5



5 (0.5, 3.6)



1 2



10 6



18 (1.8, 13) 12 (1.2, 9)



2



6



12 (1.2, 9)



4 1 2 1 1



8 6 5 6 6



24 (2.4, 17) 10 (1.0, 7) 9 (0.9, 6.5) 4 (0.4, 2.9) 10 (1.0, 7)



1 1 1 1 3 1



6 8 6 14 6 14



12 (1.2, 9) 30 (3.1, 22) 10 (1.0, 7) 64 (6.5, 47) 12 (1.2, 9) 64 (6.5, 47)



1 6 2 2



12 6 6 6



64 (6.5, 47) 16 (1.6, 12) 10 (1.0, 7) 10 (1.0, 7)



REMARKS



NOTE 1



NOTE 1 NOTE 2 NOTE 2 NOTE 2 NOTE 1



24-9



ANF125/M-5 ADDENDUM Intake manifold band: 7 ± 1 mm (0.3 ± 0.04 in)



INTAKE MANIFOLD BAND



INTAKE MANIFOLD BAND



Cylinder head stud bolt:



27.5 ± 1 mm (1.08 ± 0.04 in)



24-10



182 ± 1 mm (7.2 ± 0.04 in)



182 ± 1 mm (7.2 ± 0.04 in)



Cylinder stud bolt:



ANF125/M-5 ADDENDUM



FRAME ITEM FRAME/BODY PANELS/EXHAUST SYSTEM: Rear grip mounting socket bolt Exhaust pipe joint nut MAINTENANCE: Drive chain case mounting bolt FUEL SYSTEM (Programmed Fuel Injection): Fuel feed pipe mounting bolt Sensor unit torx screw Throttle cable bracket screw Bank angle sensor mounting screw Fuel pump mounting nut (see tightening sequence below)



ENGINE MOUNTING: Engine hanger front bolt/nut Engine hanger rear upper bolt/nut Engine hanger rear lower bolt/nut FRONT WHEEL/BRAKE/SUSPENSION/STEERING: Steering stem nut Steering stem top thread Bottom bridge pinch flange bolt Handlebar holder nut Handlebar mounting bolt Front axle nut Front brake disk bolt Front spoke Handlebar weight screw Fork socket bolt Brake hose clamper bolt REAR WHEEL/BRAKE/SUSPENSION: Rear axle nut Rear spoke Driven sprocket UBS nut Driven sprocket stud bolt Rear brake arm nut Shock absorber upper mounting bolt Shock absorber lower mounting cap nut Swingarm pivot nut HYDRAULIC BRAKE: Caliper bleed valve Caliper pad pin Caliper mounting bolt Brake hose oil bolt Master cylinder reservoir cover screw Front brake light switch screw Brake lever pivot bolt Brake lever pivot nut Caliper pin nut Pin bolt LIGHTS/METERS/SWITCHES Key shutter socket bolt OTHERS: Side stand pivot bolt Side stand pivot bolt/nut



Q’TY



THREAD DIA. (mm)



TORQUE N·m (kgf·m, lbf·ft)



4 2



8 8



27 (2.8, 20) 27 (2.8, 20)



4



6



6 (0.6, 4.4)



2 3 1 2 5



5 5 5 4 6



5.1 (0.5, 3.8) 3.4 (0.3, 2.5) 3.4 (0.3, 2.5) 1.2 (0.1, 0.9) 12 (1.2, 9)



1 1 1



10 10 10



59 (6.0, 43) 59 (6.0, 43) 59 (6.0, 43)



1 1 4 1 3 1 4 36 2 2 1



26 26 10 10 8 12 8 BC 3.2 6 8 6



See page 12-29 See page 12-28 64 (6.5, 47) 59 (6.0, 43) 25 (2.5, 18) 59 (6.0, 43) 42 (4.3, 31) 3.2 (0.3, 2.3) 9 (0.9, 6.6) 20 (2.0, 14) 12 (1.2, 9)



1 36 4 4 1 2 2 1



12 BC 3.2 8 8 6 10 10 10



59 (6.0, 43) 3.2 (0.3, 2.3) 32 (3.3, 24) 20 (2.0, 14) 10 (1.0, 7) 24 (2.4, 17) 24 (2.4, 17) 39 (4.0, 29)



1 1 2 2 2 1 1 1 1 1



8 10 8 10 4 4 6 6 8 8



5.4 (0.6, 4.0) 17 (1.7, 12) 30 (3.1, 22) 34 (3.5, 25) 1.5 (0.2, 1.1) 1.2 (0.1, 0.9) 1 (0.1, 0.7) 5.9 (0.6, 4.4) 22 (2.2, 16) 17 (1.7, 12)



1



6



10 (1.0, 7)



1 1



10 10



18 (1.8, 13) 44 (4.5, 33)



REMARKS



NOTE 3 NOTE 3 NOTE 1



NOTE 1 NOTE 4 NOTE 3 NOTE 2 NOTE 1 NOTE 3



NOTE 4



NOTE 1



24-11



ANF125/M-5 ADDENDUM



TOOLS NOTES: 1. Equivalent commercially available. 2. Alternative tool. DESCRIPTION Fuel pressure gauge Fuel attachment joint 6-9 Pressure gauge manifold Fuel attachment hose 6-9 Fuel attachment hose 9-9 DLC short connector Valve adjuster wrench Wrench 8 x 9 mm Spoke wrench, 4.5 x 5.1 mm Valve spring compressor Valve spring compressor attachment Valve guide driver 4.8 mm Valve guide reamer 5.0 mm Valve seat cutters Seat cutter, 24 mm (45° IN) Seat cutter, 22 mm (45° EX) Flat cutter, 27 mm (32° IN) Flat cutter, 22 mm (32° EX) Interior cutter, 26 mm (60° IN) Interior cutter, 20.5 mm (60° EX) Cutter holder, 5.0 mm Lock nut wrench, 20 x 24 mm Extension bar Gear holder Universal holder Snap ring pliers Bearing remover set, 12 mm — Bearing remover shaft, 12mm — Bearing remover head, 12mm Remover weight Bearing remover shaft, 10 mm Bearing remover head, 10 mm Driver Attachment, 28 x 30 mm Pilot, 10 mm Pilot, 12 mm Flywheel holder Flywheel puller, 28 mm Flywheel puller, 30 mm Universal bearing puller Assembly set, 14 mm Attachment, 22 x 24 mm Attachment, 32 x 35 mm Attachment, 37 x 40 mm Attachment, 52 x 55 mm Pilot, 17 mm Pilot, 22 mm



24-12



TOOL NUMBER



REMARKS



REF. SEC.



07406 – 0040004 07ZAJ-S5A0150 07ZAJ-S5A0111 07ZAJ-S5A0130 07ZAJ-S5A0120 070PZ – ZY30100 07708 – 0030400 07708 – 0030100 07701 – 0020200 07757 – 0010000 07959 – KM30101 07942 – MA60000 07984 – MA60001



24 24 24 24 24 22 3, 7 3, 7 3, 12, 13 7 7 7 7



07780 – 0010600 07780 – 0010701 07780 – 0013300 07780 – 0012601 07780 – 0014500 07780 – 0014300 07781 – 0010400 07716 – 0020100 07716 – 0020500 07724 – 0010200 07725 – 0030000 07914 – 3230001 07936 – 1660101 07936 – 1660120 07936 – 1660110 07741 – 0010201 07936 – GE00100 07936 – GE00200 07749 – 0010000 07946 – 1870100 07746 – 0040100 07746 – 0040200 07725 – 0040000 07933 – KG20000 07KMC – HE00100 07631 – 0010000 07JMF – KW70100 07746 – 0010800 07746 – 0010100 07746 – 0010200 07746 – 0010400 07746 – 0040400 07746 – 0041000



7 7 7 7 7 7 7 9 9 9 9 9 9, 11 9, 11 9, 11 9, 11 9 9 9, 11, 12, 13 9 9 9, 11, 12, 13 9, 10 10 10 11 11 11 11, 12, 13 11, 13 11, 12 11, 13 11



ANF125/M-5 ADDENDUM DESCRIPTION Inner driver, 35 mm Bearing remover shaft Bearing remover head, 12 mm Fork seal driver Fork seal driver attachment Steering stem socket Lock nut wrench Steering stem pin spanner Ball race remover, 40 mm Ball race remover, 34.5 mm Attachment, 45 x 50 mm Oil seal remover Snap ring pliers Peak voltage adaptor



TOOL NUMBER 07746 – 0030400 07746 – 0050100 07746 – 0050300 07747 – 0010100 07747 – 0010300 07916 – 3710101 07916 – KM10000 07702 – 0020001 07953 – 4250002 07948 – 4630100 07946 – 6920100 07748 – 0010001 07914 – SA50001 07HGJ – 0020100



REMARKS



NOTE 2: Imrie diagnostic tester (model 625)



REF. SEC. 12 12 12 12 12 12 12 12 12 12 12 12 14 16



24-13



ANF125/M-5 ADDENDUM



LUBRICATION & SEAL POINTS ENGINE



LOCATION



MATERIAL



Cylinder sleeve inner surface Timing hole cap threads Crankshaft hole cap threads Valve adjuster hole cap threads Piston and cylinder sliding surface Piston pin and piston sliding surface Piston ring whole surface Connecting rod small end I.D. Connecting rod big end needle bearing IN/EX valve stem sliding surface Camshaft cam surface Cam chain surface Cam set plunger whole surface Cam decomp rotating surface Rocker arm roller surface and boss inner surface Rocker arm shaft whole surface Valve adjusting nut fastening surface Oil pump rotor sliding surface Clutch outer guide outer surface Manual clutch center lock nut fastening surface Clutch disc surface Centrifugal clutch lock nut fastening surface Oil pump drive gear inner surface M3, 4 gear inner surface M3 shift fork groove surface C1, 3, 4 gear inner surface C4 shift fork groove surface C1 bushing whole surface Shift fork shaft whole surface Starter driven gear I.D. and gear teeth (ANF125M only) Gearshift drum journal outer surface Kickstarter pinion gear inner surface Flywheel flange nut fastening surface Starter clutch rolling surface (ANF125M only) Starter reduction gear both journal (ANF125M only) Each gear sliding surface and gear teeth Each bearing rolling surface Each O-ring whole surface Each oil seal lip area



Honda 4-stroke oil or equivalent



Oil centrifugal filter cover bolt thread



Locking agent



Dripping (1.0-2.0 cm3)



Injecting (0.5-1.0 cm3)



4 mm (0.16 in)



1.6 mm (0.06 in) Main shaft bearing set plate bolt thread Gear shift cam plate socket bolt thread Starter clutch outer mounting socket bolt thread (ANF125M only) Primary drive gear



24-14



REMARKS



Molybdenum oil (mixture of the engine oil and Molybdenum grease in a ratio 1 : 1)



ANF125/M-5 ADDENDUM



ENGINE (Cont’d) LOCATION Left crankcase mating surface



MATERIAL



REMARKS



Liquid sealant



Alternator grommet sealing surface Alternator inner surface Left crankcase shaft tapered area



Degreasing



24-15



ANF125/M-5 ADDENDUM



FRAME



LOCATION



MATERIAL



Steering head bearing sliding surface Steering head dust seal lips



Multi-purpose grease with extreme pressure (example: EXCELITE EP2 manufactured by KYDO YUSHI, Japan), Shell Alvania EP2 or equivalent



Front wheel dust seal lips Rear wheel driven flange dust seal lip Rear wheel hub O-ring Brake panel anchor pin Brake cam and shaft Side stand pivot surface Kickstarter arm sliding surface Throttle housing and throttle pipe sliding surface Brake pedal pivot surface Steering handle lock sliding surface Seat lock sliding surface



Multi-purpose grease



Throttle cable surface



Molybdenum oil (mixture of the engine oil and Molybdenum grease in a ratio 1 : 1)



Throttle cable connecting area Front disc brake lever pivot sliding surface Front disc brake lever contacting area with piston Brake caliper bracket pin bolt and boot Brake master cylinder boot Brake caliper dust seal



Silicone grease



Brake master cylinder piston sliding area Brake caliper piston sliding area Brake caliper piston seal



Brake fluid DOT3 or DOT4



Driven flange stud bolt threads Fork socket bolt threads Brake caliper pin nut Front brake disc bolt thread



Locking agent



Handle grip rubber inside



Honda Bond A



Fork dust seal and oil seal lips Fork bottom case inside



Honda Ultra Cushion Oil No.10



Drive chain Injector O-ring and seal ring Drum brake cam dust seal Drive sprocket nut



24-16



SAE #80 or 90 gear oil Honda 4-stroke oil or equivalent



REMARKS



About 0.1 cm3 (0.1 cc) Inject



ANF125/M-5 ADDENDUM



CABLE & HARNESS ROUTING



HEADLIGHT 3P CONNECTOR



RIGHT HANDLEBAR SWITCH WIRE



TURN SIGNAL RELAY LEFT HANDLEBAR SWITCH WIRE



FRONT BRAKE LIGHT SWITCH WIRE SPEEDOMETER WIRE THROTTLE CABLE



HORN WIRES



FRONT BRAKE HOSE



IGNITION SWICH WIRE



24-17



ANF125/M-5 ADDENDUM



FRONT BRAKE HOSE



THROTTLE CABLE



LEFT FRONT TURN SIGNAL LIGHT (2P) CONNECTOR



PULSE SECONDARY AIR (PAIR) FILTER



FUEL FEED HOSE



AIR SUPPLY HOSE



AIR INJECTION PIPE



EOT SENSOR WIRE



24-18



ANF125/M-5 ADDENDUM



HORN WIRES THROTTLE CABLE



MAIN WIRE HARNESS



SEAT LOCK CABLE



RIGHT FRONT TURN SIGNAL LIGHT (2P) CONNECTOR CRANKCASE BREATHER TUBE



SPARK PLUG WIRE



FRONT BRAKE HOSE



24-19



ANF125/M-5 ADDENDUM ANF125 : INJECTOR WIRE



SENSOR UNIT WIRE



IGNITION COIL WIRE



SPARK PLUG WIRE



PAIR CONTROL VALVE VACUUM TUBE



REAR BRAKE LIGHT SWITCH WIRE



CRANKCASE BREATHER TUBE ANF125M :



CRANKCASE BREATHER TUBE



STARTER MOTOR CABLE



INJECTOR WIRE



SENSOR UNIT WIRE IGNITION COIL WIRE SPARK PLUG WIRE



REAR BRAKE LIGHT SWITCH WIRE



PAIR CONTROL VALVE VACUUM TUBE



GROUND CABLE



24-20



ANF125/M-5 ADDENDUM



THROTTLE CABLE



EOT SENSOR WIRE BANK ANGLE SENSOR WIRE



FUEL FEED HOSE



AIR INJECTION PIPE



ENGINE OIL TEMPERATURE (EOT) SENSOR



SPEED SENSOR WIRE



BATTERY POSITIVE CABLE BATTERY NEGATIVE CABLE MAIN FUSE



STARTER RELAY (ANF125M only)



SUB FUSE



24-21



ANF125/M-5 ADDENDUM



FUEL FEED HOSE REAR COMBINATION LIGHT WIRE



FUEL PUMP WIRE



SEAT LOCK CABLE



REGULATOR/ RECTIFIER WIRE



GROUND WIRE



REAR COMBINATION LIGHT WIRE



24-22



ANF125/M-5 ADDENDUM



ENGINE CONTROL MODULE (ECM) WIRE



FUEL FEED HOSE



24-23



ANF125/M-5 ADDENDUM



MAINTENANCE SCHEDULE Perform the Pre-ride inspection in the Owner’s Manual at each scheduled maintenance period. I: Inspect and Clean, Adjust, Lubricate or Replace if necessary. C: Clean. R: Replace. A: Adjust. L: Lubricate. The following items require some mechanical knowledge. Certain items (particularly those marked * and **) may require more technical information and tools. Consult your Honda dealer. FREQUENCY



WHICHEVER ODOMETER READING (NOTE 1) COMES X1,000 mi 2.5 5 0.6 FIRST X1,000 km 8 4 1 MONTH



ITEM



7.5 12



6



12



18



REFER TO PAGE



*



FUEL LINE



I



I



I



24-25



*



THROTTLE OPERATION



l



l



l



22-29



*



AIR CLEANER



NOTE 2



C



C



R



3-5



CRANKCASE BREATHER



NOTE 3



C



C



C



3-5



SPARK PLUG



I



R



I



3-6



VALVE CLEARANCE



l



I



I



I



3-7



ENGINE OIL



R



R



R



R



3-9



C



3-10



** ENGINE OIL STRAINER SCREEN ** ENGINE OIL CENTRIFUGAL FILTER *



ENGINE IDLE SPEED



*



SECONDARY AIR SUPPLY SYSTEM



l



C



3-10



I



24-25



l



3-12



EVERY 1,000 km (600 mi): I, L NOTE 4



BRAKE SHOES/PADS WEAR BRAKE SYSTEM



I



NOTE 5



DRIVE CHAIN BRAKE FLUID



I



I



3-13



I



I



I



3-16



I



I



I



3-17



I



I



I



3-17



*



BRAKE LIGHT SWITCH



I



I



I



3-18



*



HEADLIGHT AIM



I



I



I



3-19



SIDE STAND



I



I



I



3-20



*



SUSPENSION



l



I



l



3-20



*



NUTS, BOLTS, FASTENERS



** WHEELS/TIRES



l



** STEERING HEAD BEARINGS



I



3-21



I



I I



I



I



3-21



I



3-22



* Should be serviced by your Honda dealer, unless the owner has proper tools and service data and is mechanically qualified. ** In the interest of safety, we recommend these items be serviced only by your Honda dealer. Honda recommends that your Honda dealer should road test your motorcycle after each periodic maintenance is carried out. NOTES: 1. At higher odometer reading, repeat at the frequency interval established here. 2. Service more frequently when riding in unusually wet or dusty areas. 3. Service more frequently when riding in rain or at full throttle. 4. Replace every 2 years. Replacement requires mechanical skill. 5. Replace every 3 years or 24,000 km (15,000 mi). Replacement requires mechanical skill.



24-24



ANF125/M-5 ADDENDUM



FUEL LINE



FUEL FEED HOSE



Remove the main pipe side cover (page 23-25). Check the fuel feed hose for deterioration, damage or leakage. Replace the fuel feed hose if necessary (page 24-54). Also, check the fuel feed hose fittings for leakage. Install the removed parts in the reverse order of removal.



ENGINE IDLE SPEED



IDLE ADJUSTING SCREW



If the engine must be running to do some work, make sure the area is well ventilated. Never run the engine in an enclosed area. The exhaust contains poisonous carbon monoxide gas that may cause loss of consciousness and may lead to death. Run the engine in an open area or with an exhaust evacuation system in enclosed area. NOTE: • Inspect and adjust the idle speed after all other engine maintenance items have been performed and are within specifications. • The engine must be warm for accurate idle speed inspection and adjustment. Warm up the engine for about ten minutes. Connect a tachometer. Turn the idle adjusting screw as required to obtain the specified idle speed. IDLE SPEED: 1,400 ± 100 min–1 (rpm)



24-25



ANF125/M-5 ADDENDUM



TECHNICAL FEATURE ABSOLUTE PRESSURE FUEL SUPPLY SYSTEM The fuel delivery system consists of the following components: fuel tank, fuel suction filter, fuel pump, internal pressure regulator, fuel feed hose and injector. This system is eruipped with the absolute fuel pressure. There is no external fuel return hose or vacuum pressure regulator with this system. The fuel pressure in the fuel delivery system is regulated by the internal pressure regulator and always kept absolute; 294 kPa (3.0 kgf/cm2, 43 psi). The internal pressure regurator returns the fuel by opening a valve when the fuel pressure increases more than 294 kPa (3.0 kgf/cm2, 43 psi). This system optimizes injection volume by the ECM control.



FUEL PUMP



PRESSURE REGULATOR



FUEL SUCTION FILTER



INJECTOR



FUEL FEED HOSE FUEL TANK



24-26



ANF125/M-5 ADDENDUM



FUEL SYSTEM COMPONENT LOCATION 4.2 N•m (0.4 kgf•m, 3 lbf•ft)



12 N•m (1.2 kgf•m, 9 lbf•ft)



24-27



ANF125/M-5 ADDENDUM



PGM-FI SERVICE INFORMATION GENERAL • Be sure to relieve the fuel pressure while the engine is “OFF”. • Before disconnecting fuel feed hose, relieve pressure from the system by disconnecting the quick connect fitting in the fuel pump (page 24-54). • Bending or twisting the control cable will impair smooth operation and could cause the cable to stick or bend, resulting in loss of vehicle control. • Work in a well ventilated area. Smoking or allowing flames or sparks in the work area or where gasoline is stored can cause a fire or explosion. • Do not snap the throttle valve from full open to full close after the throttle cable has been removed. It may cause incorrect idle operation. • Seal the cylinder head intake port with tape or a clean cloth to keep dirt and debris from entering the intake port after the throttle body has been removed. • Do not damage the throttle body. It may cause incorrect throttle valve. • Prevent dirt and debris from entering the throttle bore and fuel feed hose, clean them using compressed air. • Always reset the TP sensor when you remove the sensor unit from the throttle body. • The throttle body/sensor unit is factory pre-set. Do not disassemble in a way other than shown in this manual. • Do not loosen or tighten the white painted nut of the throttle body. Loosening or tightening them can cause throttle body malfunction. • Always replace the packing when the fuel pump is removed. • The programmed fuel injection (PGM-FI) system is equipped with the Self-Diagnostic System described (page 2431). If the malfunction indicator lamp (MIL) blinks, follow the Self-Diagnostic Procedures to remedy the problem. • When checking the PGM-FI, always follow the steps in the troubleshooting flow chart (page 24-36). • The PGM-FI system is provided with fail-safe function to secure a minimum running capability even when there is any trouble in the system. When any abnormality is detected by the self-diagnosis function, running capability is secured by making use of the numerical values of a situation preset in advance in the simulated program map. The engine does not start, if the injector or ignition pulse generator has a problem. • Refer to PGM-FI system location (page 24-29). • A faulty PGM-FI system is often related to poorly connected or corroded connectors. Check those connections before proceeding. • When disassembling the programmed fuel injection parts, note the location of the O-rings. Replace them with new ones upon reassembly. • Use a digital tester for PGM-FI system inspection. • Refer to procedures for fuel level sensor inspection (page 24-77).



PGM-FI TROUBLESHOOTING Engine won’t to start • Intake air leak • Fuel contaminated/deteriorated • Fuel supply too low – Faulty fuel pump operating system (page 24-58) – Faulty fuel supply system (page 24-54) – Clogged injector filter – Sticking injector needle Engine stall, hard to start, rough idling • Intake air leak • Fuel contaminated/deteriorated • Fuel supply too high – Faulty fuel supply system (page 24-54) • Fuel supply too low – Faulty fuel supply system (page 24-54) – Clogged injector filter • Idle speed misadjusted • Idle air passage clogged • Low cylinder compression



24-28



Backfiring or misfiring during acceleration • Fuel supply too low – Faulty fuel supply system (page 24-54) – Clogged injector filter • Ignition system malfunction (page 22-110, 24-74) Poor performance (drive ability) and poor fuel economy • Air cleaner element contaminated • Fuel supply too low – Faulty fuel supply system (page 24-54) – Clogged injector filter • Ignition system malfunction (page 22-110, 24-74) • Low cylinder compression



ANF125/M-5 ADDENDUM



PGM-FI SYSTEM LOCATION IGNITION SWITCH



BANK ANGLE SENSOR



IGNITION SWITCH



FUEL PUMP



INJECTOR



DATA LINK CONNECTOR



SENSOR UNIT (MAP, IAT, TP SENSORS) IGNITION PULSE GENERATOR



REGULATOR/ RECTIFIER



ALTERNATOR EOT SENSOR



ECM



GEAR POSITION SWITCH



MAP SENSOR



THROTTLE BODY



SENSOR UNIT



IAT SENSOR TP SENSOR



24-29



ANF125/M-5 ADDENDUM



PGM-FI SYSTEM DIAGRAM



(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)



Ignition switch Main fuse (15 A) Sub fuse (10 A) Battery Regulator/rectifire Fuel meter Malfunction indicator lamp (MIL) Neutral position indicator Bank angle sensor Data Link Connector (DLC) Fuel pump



24-30



(12) (13) (14) (15) (16) (17) (18) (19) (20) (21)



Ignition coil Intake air temperature sensor (IAT sensor) Throttle position sensor (TP sensor) Manifold absolute pressure sensor (MAP sensor) Injector Spark plug Gear (neutral) position switch Ignition pulse generator Engine oil temperature sensor (EOT sensor) Alternator charging coil



ANF125/M-5 ADDENDUM



PGM-FI SELF-DIAGNOSIS INFORMATION



MALFUNCTION INDICATOR LAMP (MIL)



SELF-DIAGNOSTIC PROCEDURE Place the motorcycle on its centerstand. NOTE: The malfunction indicator lamp (MIL) will start blinking the ignition switch to “ON” or engine revs are below 2,000 min–1 (rpm). In any other conditions, the MIL will illuminate and stay on. Turn the ignition switch to “ON”. The malfunction indicator blinks, note how many times the MIL blinks, and determine the cause of the problem (page 24-34). If the MIL does not light or blink, the system is normal. If you wish to read the PGM-FI memory for trouble data, perform the following:



To read the stored problem data Turn the ignition switch to “OFF”. Remove the front top cover (page 23-24). Disconnect the connector cover from the data link connector (DLC).



DATA LINK CONNECTOR (DLC)



CONNECTOR COVER



Connect the special tool to the data link connector (DLC). TOOL: DLC short connector



070PZ-ZY30100



DLC SHORT CONNECTOR



24-31



ANF125/M-5 ADDENDUM Turn the ignition switch to “ON”. If the ECM has no self diagnosis memory data, the MIL will illuminate, when you turn the ignition switch to “ON”.



MALFUNCTION INDICATOR LAMP (MIL)



Ignition switch to "ON"



MIL ON OFF If the ECM has self diagnosis memory data, the MIL will start blinking when you turn the ignition switch to “ON”. Ignition switch to "ON"



2.5 sec MIL ON OFF FAILURE CODES Note how many times the MIL blinks, and determine the cause of the problem (page 24-34).



SELF-DIAGNOSIS RESET PROCEDURE NOTE: The self-diagnosis memory data can not be erased only when you disconnect the battery negative cable. 1. Turn the ignition switch to “OFF”.



DATA LINK CONNECTOR (DLC)



2. Remove the front top cover (page 23-24). Disconnect the connector cover from the data link connector (DLC).



CONNECTOR COVER



3. Connect the special tool to the data link connector (DLC). TOOL: DLC short connector



070PZ-ZY30100



DLC SHORT CONNECTOR



24-32



ANF125/M-5 ADDENDUM 4. Turn the ignition switch to “ON”. 5. Disconnect the DLC short connector from the data link connector (DLC). 6. Connect the DLC short connector to the data link connector (DLC) again while the MIL lights about 5 seconds (reset receiving pattern; see below).



DLC SHORT CONNECTOR



Self-diagnosis memory data is erased, if the MIL turn off and start blinking (successful pattern; see below).



DLC SHORT CONNECTOR



MALFUNCTION INDICATOR LAMP (MIL)



0.3 sec. 0.3 sec. within 5 sec.



2 – 3 sec.



MIL ON OFF FAILURE PATTERN



RESET RECEIVING PATTERN



SUCCESSFUL PATTERN



The data link connector must be jumped while the indicator lights. If the DLC short connector are not connected with in about 5 seconds, the MIL turn off and it well illuminate (unsuccessful pattern; see below). Turn the ignition switch “OFF” and so try from step 3.



within 5 sec.



2 – 3 sec.



MIL ON OFF FAILURE PATTERN



RESET RECEIVING UNSUCCESSFUL PATTERN PATTERN



NOTE: Note that the self diagnosis memory data cannot be erased if you turn off the ignition switch before the MIL starts blinking. If the MIL blinks 33 times, the data has not been erased, so try again. And yet if the MIL blinks 33 times, check the E2-PROM (page 24-51).



24-33



ANF125/M-5 ADDENDUM



MIL CODE INDEX • The PGM-FI malfunction indicator lamp (MIL) denotes the failure codes (the number of blinks from 0 to 54). The MIL has two types of blinks, a long blinks and short blink. The long blink lasts for 1.3 seconds, the short blink lasts for 0.3 seconds. When one long blink occur, and two short blink, that problem code is 12 (one long blink = 10 blinks, two short blink = 2 blink). Then, go to the flow chart and see problem code 12. • When the Engine Control Module (ECM) stores some failure codes, the MIL shows the failure codes in the order from the lowest number to highest number. For example, when the MIL blinks once, then blinks seven times, two failures have occurred. Follow the flow chart for failure codes 1 and 7.



MIL



Detection Item



Causes



Symptoms



Refer to



No blinks



Ignition pulse generator malfunction



• Faulty ignition pulse generator



• Engine does not start



24-74



No blinks



Injector malfunction



• Clogged injector filter • Sticking injector needle



• Engine does not start



—



No blinks



ECM malfunction



• Faulty ECM



• Engine does not start



—



No blinks



ECM power/ ground circuit malfunction



• Blown main-fuse (15 A) • Open circuit at the power input wire of the ECM • Faulty ignition switch



• Engine does not start



24-36



No blinks



MIL circuit malfunction



• Faulty ECM • Open or short circuit in MIL wire



• Engine operates normally



—



Stay lit



Data link or MIL circuit malfunction



• Short circuit in data link connector (DLC) wire • Short circuit in Malfunction Indicator Lamp (MIL) wire • Faulty ECM



• Engine operates normally



—



1, 8, 9 all Blinks



Sensor unit power/ground circuit malfunction



• Loose or poor contact on sensor • Open or short circuit in sensor unit power/ground wire • Faulty sensor unit



• Engine does not start



24-38



1 Blink



MAP sensor circuit malfunction



• Loose or poor contact on sensor unit • Open or short circuit in MAP sensor wire of the sensor unit • Faulty MAP sensor



• Engine operates normally



24-40



7 Blinks



EOT sensor circuit malfunction



• Loose or poor contact on EOT sensor • Open or short circuit in EOT sensor wire • Faulty EOT sensor



• Hard start at a low temperature



24-42



8 Blinks



TP sensor circuit malfunction



• Loose or poor contact on sensor unit • Open or short circuit in TP sensor wire of the sensor unit • Faulty TP sensor



• Poor engine response and performance when operating the throttle quickly



24-45



9 Blinks



IAT sensor circuit malfunction



• Loose or poor contact on sensor unit • Open or short circuit in IAT sensor wire of the sensor unit • Faulty IAT sensor



• Engine operates normally



24-47



12 Blinks



Injector circuit malfunction



• Loose or poor contact on injector connector • Open or short circuit in injector wire • Faulty injector



• Engine does not start



24-49



24-34



ANF125/M-5 ADDENDUM MIL



Detection Item



33 Blinks



E2-PROM in ECM malfunction



• Faulty ECM



Causes



• Engine operates normally • Does not hold the selfdiagnosis data



Symptoms



Refer to 24-51



54 Blinks



Bank angle sensor malfunction



• Loose or poor contact on bank angle sensor • Open or short circuit in bank angle sensor wire • Faulty bank angle sensor



• Engine operates normally • Engine does not start



24-52



24-35



ANF125/M-5 ADDENDUM



ECM POWER/GROUND INSPECTION • This vehicle has two types of power supply to operate the ECM. If the battery is in proper-working condition, it is used as the first power supply. If the battery is not in proper-working condition, the alternator voltage generated by the kickstarter is used as the second power supply. • If the engine does not start with the kickstarter, inspect the ECM POWER/GROUND INSPECTION first, then inspect the alternator (page 22-104) and regulator/rectifier (page 22-104) as the secondary power supply. • Before inspecting the ECM POWER/GROUND INSPECTION, be sure to charge or replace the battery with a new one.



Engine does not start (MIL does not blink)



Turn the ignition switch to “OFF”.



Disconnect the ECM 33P connector. Check for loose or poor connect on the ECM 33P connector.



ECM 33P CONNECTOR



Connect the ECM 33P connector. Start the engine.



ECM 33P CONNECTOR



Engine dose not start Turn the ignition switch to “OFF”.



24-36



Engine starts



• Loose or poor contact on the ECM connector



ANF125/M-5 ADDENDUM



Disconnect the ECM 33P connector. Check for continuity between the ECM connector of the wire harness side and ground.



Abnormal



• Open circuit in Green wire



ECM 33P CONNECTOR



CONNECTION: Green — Ground Green/Black — Ground STANDARD: Continuity Normal Turn the ignition switch to “ON” and measure the battery voltage between the ECM connector of the wire harness side and ground.



Out of range



ECM 33P CONNECTOR



• • • •



Loose or poor connector contact Inspect the ignition switch (page 18-10) Blown main-fuse (15A) Open or short circuit in following wire harness: — Red wire or Red/Yellow wire between the battery and ignition switch — Black/Blue wire between the ignition switch and ECM



CONNECTION: Black/Blue (+) — Ground (–) STANDARD: Battery voltage — 1.1 V minimum



Voltage exist • Replace the ECM with a new one, and inspect it again



24-37



ANF125/M-5 ADDENDUM



SENSOR UNIT POWER/GROUND CIRCUIT INSPECTION PGM-FI MIL 1, 8, 9 ALL BLINKS (MAP, TP, IAT SENSOR) • Before starting the inspection, recheck the MIL blinking. If the MIL does not light or blink, the system is normal. Turn the ignition switch to “OFF”.



Disconnect the sensor unit 5P connector and ECM 33P connector. Check for loose or poor contact on the sensor unit 5P connector and ECM 33P connector. SENSOR UNIT 5P CONNECTOR



ECM 33P CONNECTOR



Connect the sensor unit 5P connector and ECM 33P connector. Turn the ignition switch to “ON”. Check the MIL blinks. SENSOR UNIT 5P CONNECTOR



ECM 33P CONNECTOR



1, 8, 9 blinks Turn the ignition switch to “OFF”.



24-38



No blink



• Loose or poor contact on the sensor unit 5P connector and/or ECM 33P connector



ANF125/M-5 ADDENDUM



Disconnect the sensor unit 5P connector. Turn the ignition switch to "ON". Measure the voltage between the sensor unit 5P connector terminals at the wire harness side.



Voltage exist



• Replace the sensor unit with a new one and inspect again



SENSOR UNIT 5P CONNECTOR



CONNECTION: Yellow/Red (+) – Green/Orange (–) STANDARD: 4.75 – 5.25 V Out of range Disconnect the ECM 33P connector. Check for continuity between the ECM 33P connector and sensor unit 5P connector at the wire harness side.



Abnormal



• Open circuit in Yellow/Red or Green/Orange wire • Short circuit in Yellow/Red wire



SENSOR UNIT 5P CONNECTOR



ECM 33P CONNECTOR CONNECTION: Yellow/Red – Yellow/Red Green/Orange – Green/Orange STANDARD: Continuity CONNECTION: Yellow/Red – Ground STANDARD: No continuity Normal



• Replace the ECM with a new one and inspect again



24-39



ANF125/M-5 ADDENDUM



MIL TROUBLESHOOTING PGM-FI MIL 1 BLINK (MAP SENSOR) • Before starting the inspection, recheck the MIL blinking. If the MIL does not light or blink, the system is normal. Turn the ignition switch to “OFF”.



Reset the self diagnosis memory data (page 24-32). Turn the ignition switch to "ON". Check the MIL blinks.



1, 8, 9 all blinks



• Go to SENSOR UNIT POWER/GROUND CIRCUIT INSPECTION (page 24-38)



1 blink Turn the ignition switch to “OFF”.



Disconnect the sensor unit 5P connector. Turn the ignition switch to "ON". Measure the voltage between the sensor unit 5P connector at the wire harness side and ground. SENSOR UNIT 5P CONNECTOR



CONNECTION: Light green/Yellow (+) – Ground (–) STANDARD: 3.8 – 5.25 V Out of range Turn the ignition switch to “OFF”.



(To page 24-41)



24-40



Voltage exist



• Replace the sensor unit with a new one and inspect again (Faulty MAP sensor)



ANF125/M-5 ADDENDUM Disconnect the ECM 33P connector. Check for continuity between the ECM 33P connector and sensor unit 5P connector at the wire harness side. Check for no continuity between the sensor unit 5P connector at the wire harness side and ground.



Abnormal



• Open circuit in Light green/Yellow wire • Short circuit in Light green/Yellow wire



SENSOR UNIT 5P CONNECTOR



ECM 33P CONNECTOR CONNECTION: Light green/Yellow – Light green/Yellow STANDARD: Continuity CONNECTION: Light green/Yellow – Ground STANDARD: No continuity



Normal



• Replace the ECM with a new one and inspect again



24-41



ANF125/M-5 ADDENDUM



PGM-FI MIL 7 BLINKS (EOT SENSOR) • Before starting the inspection, recheck the MIL blinking. If the MIL does not light or blink, the system is normal. Turn the ignition switch to “OFF”.



Disconnect the EOT 2P sensor connector. Check for loose or poor contact on the EOT sensor 2P connector.



EOT SENSOR 2P CONNECTOR



Connect the EOT sensor 2P connector. Turn the ignition switch to “ON”. Check the MIL blinks.



No blink



• Loose or poor contact on the EOT sensor connector



EOT SENSOR 2P CONNECTOR 44 blinks Turn the ignition switch to “OFF”.



Disconnect the EOT sensor 2P connector. Measure the resistance at the EOT sensor terminals.



EOT SENSOR STANDARD: 2.5 – 2.8 kΩ (20°C/68°F) Normal



24-42



Abnormal



• Inspect the EOT sensor (page 24-71)



ANF125/M-5 ADDENDUM



Check for continuity between the EOT sensor terminal and ground.



Abnormal



• Faulty EOT sensor



EOT SENSOR



STANDARD: No continuity Normal Measure the voltage between the EOT sensor connector at the wire harness side. Normal



Out of range



• Open circuit in Green/Orange wire • Loose or poor contact on the ECM connector



EOT SENSOR 2P CONNECTOR CONNECTION: Yellow/Blue – Green/Orange STANDARD: 4.75 – 5.25 V Voltage exist Turn the ignition switch to “OFF”.



(To page 24-44)



24-43



ANF125/M-5 ADDENDUM



(From page 24-43)



Disconnect the ECM 33P connector. Check for continuity between the ECM 33P connector and EOT sensor 2P connector at the wire harness side. Check for no continuity between the EOT sensor 2P connector at the wire harness side and ground.



Abnormal



• Open or short circuit in Yellow/Blue wire • Open or short circuit in Green/Orange wire



ECM 33P CONNECTOR



EOT SENSOR 2P CONNECTOR CONNECTION: Green/Orange – Green/Orange Yellow/Blue – Yellow/Blue STANDARD: Continuity CONNECTION: Green/Orange – Ground Yellow/Blue – Ground STANDARD: No continuity Normal



24-44



• Replace the ECM with a new one and inspect again



ANF125/M-5 ADDENDUM



PGM-FI MIL 8 BLINKS (TP SENSOR) • Before starting the inspection, recheck the MIL blinking. If the MIL does not light or blink, the system is normal. Turn the ignition switch to “OFF”.



Reset the self diagnosis memory data (page 24-32). Turn the ignition switch to "ON". Check the MIL blinks.



1, 8, 9 all blinks



• Go to SENSOR UNIT POWER/GROUND CIRCUIT INSPECTION (page 24-38)



8 blinks Turn the ignition switch to “OFF”.



Disconnect the sensor unit 5P connector. Turn the ignition switch to "ON". Measure the voltage between the sensor unit 5P connector at the wire harness side and ground.



Voltage exist



• Replace the sensor unit with a new one and inspect again (Faulty TP sensor)



SENSOR UNIT 5P CONNECTOR



CONNECTION: Yellow (+) – Ground (–) STANDARD: 0 – 220 mV Out of range Turn the ignition switch to “OFF”.



(To page 24-46)



24-45



ANF125/M-5 ADDENDUM (From page 24-45)



Disconnect the ECM 33P connector. Check for continuity between the ECM 33P connector and sensor unit 5P connector at the wire harness side. Check for no continuity between the sensor unit 5P connector at the wire harness side and ground.



Abnormal



• Open circuit in Yellow wire • Short circuit in Yellow wire



SENSOR UNIT 5P CONNECTOR



ECM 33P CONNECTOR CONNECTION:Yellow – Yellow STANDARD: Continuity CONNECTION: Yellow – Ground STANDARD: No continuity Normal



24-46



• Replace the ECM with a new one and inspect again



ANF125/M-5 ADDENDUM



PGM-FI MIL 9 BLINKS (IAT SENSOR) • Before starting the inspection, recheck the MIL blinking. If the MIL does not light or blink, the system is normal. Turn the ignition switch to “OFF”.



Reset the self diagnosis memory data (page 24-32). Turn the ignition switch to "ON". Check the MIL blinks.



1, 8, 9 all blinks



• Go to SENSOR UNIT POWER/GROUND CIRCUIT INSPECTION (page 24-38)



9 blinks Turn the ignition switch to “OFF”.



Disconnect the sensor unit 5P connector. Turn the ignition switch to "ON". Measure the voltage between the sensor unit 5P connector at the wire harness side and ground.



Voltage exist



• Replace the sensor unit with a new one and inspect again (Faulty IAT sensor)



SENSOR UNIT 5P CONNECTOR



CONNECTION: Gray/Blue (+) – Ground (–) STANDARD: 4.75 – 5.25 V Out of range Turn the ignition switch to “OFF”.



(To page 24-48)



24-47



ANF125/M-5 ADDENDUM



(From page 24-47)



Disconnect the ECM 33P connector. Check for continuity between the ECM 33P connector and sensor unit 5P connector at the wire harness side. Check for no continuity between the sensor unit 5P connector at the wire harness side and ground.



Abnormal



• Open circuit in Gray/Blue wire • Short circuit in Gray/Blue wire



SENSOR UNIT 5P CONNECTOR



ECM 33P CONNECTOR CONNECTION: Gray/Blue – Gray/Blue STANDARD: Continuity CONNECTION:Gray/Blue – Ground STANDARD: No continuity Normal



24-48



• Replace the ECM with a new one and inspect again



ANF125/M-5 ADDENDUM



PGM-FI MIL 12 BLINKS (INJECTOR) • Before starting the inspection, recheck the MIL blinking. If the MIL does not light or blink, the system is normal. Turn the ignition switch to “OFF”.



Disconnect the injector 2P connector. Check for loose or poor contact on the injector 2P connector. INJECTOR 2P CONNECTOR



Connect the injector 2P connector. Turn the ignition switch to “ON”. Check the MIL blinks.



No blink



• Loose or poor contact on the injector connector



INJECTOR 2P CONNECTOR 12 blinks Turn the ignition switch to “OFF”.



(To page 24-50)



24-49



ANF125/M-5 ADDENDUM (From page 24-49)



Disconnect the injector 2P connector. Turn the ignition switch to”ON”. Measure the battery voltage between the injector connector at the wire harness side and ground.



Out of range



• Open or short circuit in Black/Blue wire



INJECTOR 2P CONNECTOR



CONNECTION: Black/Blue (+) – Ground (–) STANDARD: Battery voltage – 1.1 V minimum Voltage exist Turn the ignition switch to “OFF”.



Disconnect the ECM 33P connector. Check for continuity between the injector connector and ECM connector at the wire harness side. Check for no continuity between the injector 2P connector at the wire harness side and ground. ECM 33P CONNECTOR



INJECTOR 2P CONNECTOR CONNECTION: Pink/Green – Pink/Green STANDARD: Continuity CONNECTION: Pink/Green – Ground STANDARD: No continuity Normal



24-50



Abnormal



• Open or short circuit in Pink/Green wire



ANF125/M-5 ADDENDUM



Measure the resistance at the injector terminals. INJECTOR



Abnormal



• Faulty injector



STANDARD: 10.2 – 11.4 Ω (20°C/68°F)



Normal



• Replace the ECM with a new one and inspect again



PGM-FI MIL 33 BLINKS (E2-PROM) Turn the ignition switch to “OFF”.



Reset the self-diagnosis memory data (page 24-32). Turn the ignition switch to “ON”. Check that the MIL blinks.



No blink



33 blinks



• Intermittent failure



• Replace the ECM with a new one and inspect again



24-51



ANF125/M-5 ADDENDUM



PGM-FI MIL 54 BLINKS (BANK ANGLE SENSOR) • Before starting the inspection, recheck the MIL blinking. If the MIL does not light or blink, the system is normal. Turn the ignition switch to “OFF”.



Disconnect the bank angle sensor 3P connector. Check for loose or poor contact on the bank angle sensor 3P connector.



BANK ANGLE SENSOR 3P CONNECTOR



Connect the bank angle sensor 3P connector. Turn the ignition switch to “ON”. Check the MIL blinks. BANK ANGLE SENSOR 3P CONNECTOR



54 blinks



24-52



No blink



• Loose or poor contact on the bank angle sensor 3P connector



ANF125/M-5 ADDENDUM



Turn the ignition switch to “OFF”.



Disconnect the ECM 33P connector. Check for continuity between the bank angle sensor 3P connector and ECM 33P connector at the wire harness side. Check for continuity between the bank angle sensor 3P connector at the wire harness side and ground.



Abnormal



• Open or short circuit in Green/Orange wire • Open or short circuit in Yellow/Red wire • Open or short circuit in Red/Blue wire



BANK ANGLE SENSOR 3P CONNECTOR ECM 33P CONNECTOR



CONNECTION: Green/Orange – Green/Orange Yellow/Red – Yellow/Red Red/Blue– Red/Blue STANDARD: Continuity CONNECTION: Yellow/Red – Ground Red/Blue– Ground STANDARD: No continuity Normal Disconnect the bank angle sensor 3P connector. Turn the ignition switch to “ON”. Measure the voltage between the bank angle sensor 3P connector at the wire harness side and ground.



Voltage exist



• Replace the bank angle sensor with a new one and inspect again



BANK ANGLE SENSOR 3P CONNECTOR CONNECTION: Yellow/Red (+) – Ground (–) STANDARD: 4.75 – 5.25 V Out of range • Replace the ECM with a new one and inspet again



24-53



ANF125/M-5 ADDENDUM



FUEL LINE INSPECTION



FUEL TANK MOUNTING BOLT



FUEL PRESSURE RELIEVING/QUICK CONNECT FITTING REMOVAL NOTE: Before disconnecting fuel feed hose, relieve pressure from the system by disconnecting the quick connect fitting in the fuel pump. Remove the following: — Body cover (page 23-27) — Two special screws — Fuel tank mounting bolt — Fuel pump cover



SPECIAL SCREWS



FUEL PUMP COVER



Disconnect the fuel pump 5P (Black) connector.



FUEL PUMP 5P (BLACK) CONNECTOR



Start the engine, and let it idle until the engine stalls. Turn the ignition switch to “OFF”. Disconnect the battery negative cable and then positive cable.



Check the fuel quick connect fitting for dirt, and clean if necessary.



SHOP TOWEL



Place a shop towel over the quick connect fitting.



FUEL CONNECT FITTING



Pull away the rubber.



RETAINER TABS



Hold the connector with one hand and squeeze the retainer tabs with the other hand release them from the locking pawls. Pull the connector off. NOTE: • Prevent the remaining fuel in the fuel feed hose from following out with a shop towel. • Be careful not to damage the hose or other parts. • Do not use tools. • If the connector does not move, keep the retainer tabs pressed down, and alternately pull and push the connector until it comes of easily.



24-54



RUBBER



LOCKING PAWLS CONNECTOR



ANF125/M-5 ADDENDUM To prevent damage and keep foreign matter out, cover the disconnected connector and pipe end with the plastic bags.



PIPE



PLASTIC BAGS



CONNECTOR



QUICK CONNECT FITTING INSTALLATION



CONNECTOR



NOTE: • Always replace the retainer of the quick connect fitting when the fuel feed hose is disconnected. • If any retainer need replacing, use the same manufacture's retainer as the ones being removed (The several manufactures feature different retainer specifications).



HOOKS



Clean around the fuel hose joint.



HOLES RETAINER



Insert a new retainer into the connector joint with aligning the two hooks of the retainer with the two holes on the connector joint. NOTE: Do not bent or twist the fuel feed hose.



FUEL PUMP SIDE: LOCKING PAWLS



Clean around the pipe. PIPE Set the rubber correctly. RUBBER Align the quick connect fitting with the pipe and align the new retainer locking pawls with the connector grooves. Then press the quick connect fitting onto the pipe until both retainer pawls lock with a "CLICK". CONNECTOR If it is hard to connect, put a small amount of engine oil on the pipe end.



NOTE:



INJECTOR SIDE:



When connecting the quick connect fitting to the injector side fuel feed pipe, align the tabs between the connector damper and retainer.



TABS



CONNECTOR DAMPER



RETAINER TABS



24-55



ANF125/M-5 ADDENDUM Make sure the connection is secure and that the pawls are firmly locked into place; check visually and by pulling the connector.



CONNECTOR



Connect the fuel pump 5P (Black) connector.



FUEL PUMP 5P (BLACK) CONNECTOR



Temporally connect the positive cable and negtive cable to the battery. NOTE: Do not start the engine. Turn the ignition switch "ON". The fuel pump will run for about 2 seconds, and fuel pressure will rise. Repeat 2 or 3 times, and check that there is no leakage in the fuel supply system.



Install the fuel pump cover. Install and tighten the two special screws to the specified torque.



FUEL TANK MOUNTING BOLT



TORQUE: 4.2 N•m (0.4 kgf•m, 3 lbf•ft) Install and tighten the fuel tank mounting bolt securely. Install the following: — Body cover (page 23-27)



FUEL PUMP COVER



24-56



SPECIAL SCREWS



ANF125/M-5 ADDENDUM



FUEL PRESSURE TEST Relieve the fuel pressure and disconnect the quick connect fitting (page 24-54).



PRESSURE GAUGE FUEL JOINT 6-9



Attach the fuel pressure gauge set and pressure gauge. TOOLS: Fuel pressure gauge Pressure gauge manifold Fuel attachment hose 6-9 Fuel attachment hose 9-9 Fuel attachment joint 6-9



FUEL HOSE 9-9 07406-0040004 07ZAJ-S5A0111 07ZAJ-S5A0130 07ZAJ-S5A0120 07ZAJ-S5A0150



FUEL HOSE 6-9 MANIFOLD



Temporally connect the positive cable and negative cable to the battery. Start the engine and let it idle. Read the fuel pressure. IDLE SPEED: 1,400 ± 100 min–1 (rpm) FUEL PRESSURE: 294 kPa (3.0 kgf/cm2, 43 psi) If the fuel pressure is higher than specified, replace the fuel pump assembly. If the fuel pressure is lower than specified, inspect the following: — Fuel line leaking — Fuel pump (page 24-58) — Clogged fuel suction filter (Assembly of the fuel pump) After inspection, remove the fuel pressure gauge and pressure gauge set from the fuel pump. Connect the quick connect fitting (page 24-55).



FUEL FLOW INSPECTION Relieve the fuel pressure and disconnect the quick connect fitting (page 24-54). Connect the special tool to the fuel pump joint. TOOL: Fuel attachment hose 6-9



07ZAL-S5A0130



NOTE: Wipe off spilled out gasoline.



FUEL ATTACHMENT HOSE 6-9



Place the end of the hose into an approved gasoline container and measure the amount of fuel flow with the igniton switch turning "ON". NOTE: The fuel pump operates for two seconds. Repeat 5 times so that the total measuring time. Amount of fuel flow: 13.9 cm3 (0.47 US oz, 0.49 Imp oz) minimum/ 10 seconds at 12 V If the fuel flow is less than specified, inspect the following: — Fuel pump (page 24-58) — Clogged fuel suction filter (Assembly of the fuel pump) Connect the quick connect fitting (page 24-55).



24-57



ANF125/M-5 ADDENDUM



FUEL PUMP



FUEL PUMP 5P (BLACK) CONNECTOR



INSPECTION Turn the ignition switch to “ON” and confirm that the fuel pump operates for a few seconds. If the fuel pump does not operate, inspect as follows: Turn the ignition switch to “OFF”. Remove the body cover (page 23-27). Remove the fuel pump cover (page 24-54). Disconnect the fuel pump 5P (Black) connector.



Turn the ignition switch to “ON” and measure the voltage between the terminals.



FUEL PUMP 5P (BLACK) CONNECTOR



CONNECTION: Black/Blue (+) — Brown (–) STANDARD: Battery voltage — 1.1 V minimum If there is specified value, replace the fuel pump. If there is out of specified value, inspect the following: — Main fuse 15 A — Open circuit in Black/Blue or Brown wire — ECM (page 24-36)



REMOVAL



CLAMP



FUEL PUMP WIRE



NOTE: It is impossible to disassemble the fuel pump after removing it. Clean around the fule pump. Relieve the fuel pressure and disconnect the quick connect fitting (page 24-54). Disconnect the fuel pump 5P (Black) connector. Remove the fuel pump wire from the clamp.



Remove the fuel pump mounting nuts and clamp.



FUEL PUMP 5P (BLACK) CONNECTOR



CLAMP



NUTS



24-58



ANF125/M-5 ADDENDUM NOTE:



SET PLATE



Remove the fuel pump being careful not to damage the fuel level sensor float arm. Remove the set plate/fuel pump unit assembly and packing.



FUEL PUMP UNIT



INSPECTION



PACKING



FUEL PUMP UNIT



Check the fuel pump unit for wear or damage. Check the fuel suction filter for wear or damage. Replace the fuel pump unit if necessary



FUEL SUCTION FILTER



INSTALLATION FUEL PUMP UNIT NOTE: • Always replace the packing with a new one. • Install the fuel pump being careful not to damage the fuel level sensor float arm. • Be careful not to pinch the dirt and bedris between the fuel pump and packing. Place a new packing onto the fuel pump unit.



PACKING



Install the set plate by aligning its holes with the tabs on the fuel pump unit.



SET PLATE



Install the set plate/fuel pump unit assembly to the fuel tank.



FUEL PUMP UNIT



Align



24-59



ANF125/M-5 ADDENDUM Install the clamp and tighten the fuel pump mounting nuts in the sequence shown. CLAMP



TORQUE: 12 N•m (1.2 kgf•m, 9 lbf•ft)



NUTS



Connect the fuel pump 5P (Black) connector. Clamp the fuel pump wire.



CLAMP



FUEL PUMP WIRE



Connect the quick connect fitting (page 24-55).



FUEL PUMP 5P (BLACK) CONNECTOR FUEL PUMP 4P CONNECTOR



FUEL TANK



BOLTS



REMOVAL/INSTALLATION Relieve the fuel pressure and disconnect the quick connect fitting (page 24-54). Remove the fuel pump wire from the clamp. Remove the three mounting bolts and the fuel tank. Installation is in the reverse order of removal. Connect the quick connect fitting (page 24-55).



24-60



FUEL TANK



ANF125/M-5 ADDENDUM



THROTTLE BODY/SENSOR UNIT REMOVAL NOTE: • The sensor unit can be removed with the throttle body installed in the air cleaner and intake manifold. • If you have removed sensor unit, reset the throttle position (TP) sensor (page 24-65). Remove the main pipe side cover (page 23-25). Relieve the fuel pressure (page 24-54).



Disconnect the following: — Spark plug cap — Crankcase breather tube — Pair control valve vacuum tube — Injector 2P connector — Sensor unit 5P connector



CRANKCASE BREATHER TUBE



SCREW



Loosen the air cleaner connecting hose band screw.



PAIR CONTROL VALVE VACUUM TUBE



Loosen the throttle cable lock nut and adjusting nut then disconnect the throttle cable from the throttle drum and cable bracket.



ADJUSTING NUT



CONNECTORS



QUICK CONNECT FITTING



Disconnect the quick connect fitting (page 24-54). Remove the two intake manifold mounting bolts and throttle body/sensor unit to the right side. NOTE: Seal the cylinder head intake port with a shop towel or cover it with a piece of tape to prevent any foreign material from dropping into the engine.



LOCK NUT



THROTTLE CABLE



Remove the O-ring. Loosen the band screw and remove the intake manifold from the throttle body.



BOLTS



SCREW



INTAKE MANIFOLD



O-RING



24-61



ANF125/M-5 ADDENDUM



DISASSEMBLY



WHITE PAINTED



NOTE: • The throttle body/sensor unit is factory pre-set. Do not disassemble in a way other than shown in this manual. • Do not snap the throttle valve from full open to full close after the throttle cable has been removed. It may cause incorrect idle operation. • Do not damage the throttle body. It may cause incorrect throttle valve. • Do not loosen or tighten the white painted nut of the throttle body. Loosening or tightening it can cause throttle body malfunction.



Turn the idle adjusting screw in and record the number of turns until it seats lightly. NOTE: Damage to the idle adjusting screw seat will occur if the idle adjusting screw is tighened against the seat.



O-RING



Remove the following: — Idle adjusting screw — O-ring — Spring SPRING IDLE ADJUSTING SCREW



Remove the injector (page 24-69). Remove the three torx screws and sensor unit from the throttle body.



SENSOR UNIT O-RING



Remove the O-ring.



TORX SCREWS



Blow open each air passage in the throttle body with the compressed air. NOTE: Do not use high pressure air or bring the nozzle too close to the throttle body.



24-62



THROTTLE BODY



ANF125/M-5 ADDENDUM



ASSEMBLY IDLE ADJUSTING SCREW



BOLT 5.1 N•m (0.5 kgf•m, 3.8 lbf•ft)



O-RING FUEL FEED PIPE



SPRING O-RING TORX SCREW 3.4 N•m (0.3 kgf•m, 2.5 lbf•ft)



INJECTOR SEAL RING



SENSOR UNIT



THROTTLE CABLE BRACKET O-RING



SCREW 3.4 N•m (0.3 kgf•m, 2.5 lbf•ft)



THROTTLE BODY



NOTE:



THROTTLE BODY



SENSOR UNIT



Install the O-ring to the throttle body properly. If the O-ring is not installed properly, the idle air will leaks and engine idle speed will be unstable. Install a new O-ring to the throttle body. Install the sensor unit to the throttle body by aligning the clip of the throttle position (TP) sensor and boss of the throttle valve. O-RING NOTE: The light pressure is sufficient to assemble the sensor unit and throttle body in their correctly position. If you cannot set it easily, the clip may be misaligned, and do not force it but make sure that the clip is aligned at the right position.



BOSS OF THE THROTTLE VALVE



CLIP OF THE TP SENSOR



SENSOR UNIT



Install the three torx screws and tighten it to the specified torque. TORQUE: 3.4 N•m (0.3 kgf•m, 2.5 lbf•ft) Install the injector (page 24-69).



TORX SCREWS



24-63



ANF125/M-5 ADDENDUM Install the following: — Spring — New O-ring — Idle adjusting screw Turn the idle adjusting screw in until it seats lightly. O-RING NOTE: Damage to the idle adjusting screw seat will occur if the idle adjusting screw is tightened against the seat. Turn the idle adjusting screw out to its original position as noted during removal.



SPRING IDLE ADJUSTING SCREW



INSTALLATION NOTE:



INTAKE MANIFOLD SCREW



Be careful not to damage the intake manifold. Install the intake manifold by aligning its groove with the boss of the throttle body. Install a new O-ring to the intake manifold.



Align O-RING



Tighten the intake manifold band screw so that the band ends clearance is 7 ± 1 mm (0.3 ± 0.04 in).



7 ± 1 mm (0.3 ± 0.04 in)



INTAKE MANIFOLD BAND



24-64



ANF125/M-5 ADDENDUM Install the throttle body/sensor unit and tighten the two intake manifold mounting bolts to the specified torque.



ADJUSTING NUT



QUICK CONNECT FITTING



TORQUE: 12 N•m (1.2 kgf•m, 9 lbf•ft) Connect the quick connect fitting (page 24-55). Connect the throttle cable to the throttle drum and throttle cable bracket, then adjust the throttle grip free play (page 22-29).



LOCK NUT



Tighten the air cleaner connecting hose band screw. Connect the following: — Sensor unit 5P connector — Injector 2P connector — PAIR control valve vacuum tube — Crankcase breather tube — Spark plug cap



THROTTLE CABLE



BOLTS



CRANKCASE BREATHER TUBE



SCREW



NOTE: • If you have removed idle adjusting screw, adjust the engine idle speed (page 24-25). • If you have removed sensor unit, reset the throttle position (TP) sensor (page 24-65). Install the following: — Main pipe side cover (page 23-25) PAIR CONTROL VALVE VACUUM TUBE



CONNECTORS



THROTTLE POSITION (TP) SENSOR RESET PROCEDURE 1. Turn the ignition switch to “OFF”. 2. Disconnect the connector cover from the data link connector (DLC).



DATA LINK CONNECTOR (DLC)



CONNECTOR COVER



3. Connect the special tool to the Data Link Connector (DLC). TOOL: DLC short connector



070PZ-ZY30100



DLC SHORT CONNECTOR



24-65



ANF125/M-5 ADDENDUM 4. Disconnect the EOT sensor 2P connector. Connect the EOT sensor terminals with a jumper wire. CONNECTION: Yellow/Blue – Green/Orange



JUMPER WIRE EOT SENSOR 2P CONNECTOR



5. Turn the ignition switch to “ON” then disconnect the jumper wire from the EOT sensor 2P connector while the MIL blinking (reset receiving pattern; see page 2467) for 10 seconds.



JUMPER WIRE



After disconnection of the jumper wire, the MIL start to blinking (successful pattern; see page 24-67).



24-66



EOT SENSOR 2P CONNECTOR



MALFUNCTION INDICATOR LAMP (MIL)



ANF125/M-5 ADDENDUM within 10 sec. 0.1 sec. MIL ON



0.3 sec. 0.3 sec.



1.2 sec.



OFF RESET RECEIVING PATTERN



SUCCESSFUL PATTERN



If the jumper wire is not disconnected within 10 seconds, the MIL will illuminate (unsuccessful pattern; see below) and try again from the step 4. within 10 sec. 0.1 sec. MIL ON



1.2 sec.



OFF RESET RECEIVING PATTERN



UNSUCCESSFUL PATTERN



NOTE: When the self-diagnosis memory data is stored for ECM, the MIL start to blinking of the problem code. Be sure to reset the self-diagnosis memory data (page 24-32), so try from step 4. 6. Turn the ignition switch to “OFF”. 7. Connect the EOT sensor 2P connector.



EOT SENSOR 2P CONNECTOR



8. Disconnect the DLC short connector from the data link connector (DLC). TOOL: DLC short connector



070PZ-ZY30100



DLC SHORT CONNECTOR



24-67



ANF125/M-5 ADDENDUM 9. Connect the connector cover to the data link connector (DLC).



DATA LINK CONNECTOR (DLC)



10. Place the motorcycle with its center stand. Shift the transmission into neutral. Warm up the engine for about ten minutes. Connect a tachometer. Check the engine idle speed. IDLE SPEED: 1,400 ± 100 min–1 (rpm) If the engine idle speed is out of specification, turn the idle adjusting screw as required to obtain the specified idle speed. If the idle speed does not fall within the specification, check the “POOR PERFORMANCE AT LOW AND IDLE SPEED” (page 24-83).



24-68



IDLE ADJUSTING SCREW



CONNECTOR COVER



ANF125/M-5 ADDENDUM



ECM (ENGINE CONTROL MODULE) REMOVAL/INSTALLATION Remove the body cover (page 23-27). Remove the rubber holder and ECM. Disconnect the ECM 33P connector.



RUBBER HOLDER



Installation is in the reverse order of removal.



ECM 33P CONNECTOR



ECM



INJECTOR



BOLTS



REMOVAL Remove the throttle body/sensor unit (page 24-61). Remove the two bolts and injector assembly from the throttle body.



INJECTOR ASSEMBLY



Remove the fuel feed pipe, O-ring and seal ring from the injector.



FUEL FEED PIPE



Check the removed parts for wear or damage and replace them if necessary.



INSTALLATION Coat a new O-ring and seal ring with engine oil. NOTE: • Replace the O-ring and seal ring with new ones. • Be careful not to damage the O-ring and seal ring.



O-RING SEAL RING



INJECTOR



Install a new O-ring and new seal ring to the injector. Install the injector to the fuel feed pipe as shown.



INJECTOR TAB



STOPPER FUEL FEED PIPE



24-69



ANF125/M-5 ADDENDUM NOTE: Check that the location of the injector connector is between the stopper of the fuel feed pipe and throttle body.



STOPPER



INJECTOR CONNECTOR



Install the injector assembly to the throttle body. Install and tighten the two fuel feed pipe mounting bolts to the specified torque. TORQUE: 5.1 N•m (0.5 kgf•m, 3.8 lbf•ft) Install the throttle body/sensor unit (page 24-64) INJECTOR ASSEMBLY



BANK ANGLE SENSOR



THROTTLE BODY



3P CONNECTOR



REMOVAL/INSTALLATION Remove the following: — Main pipe side cover (page 23-25) — Body cover (page 23-27) — Utility box (page 22-25) Disconnect the bank angle sensor 3P connector. Remove the two mounting screws and bank angle sensor. BANK ANGLE SENSOR



SCREWS



Install the bank angle sensor with its “UP” mark facing up.



Install and tighten the mounting screws to the specified torque.



3P CONNECTOR



TORQUE: 1.2 N•m (0.1 kgf•m, 0.9 lbf•ft) Connect the bank angle sensor 3P connector. Install the following: — Utility box (page 22-25) — Body cover (page 23-27) — Main pipe side cover (page 23-25) BANK ANGLE SENSOR



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SCREWS



ANF125/M-5 ADDENDUM



EOT (ENGINE OIL TEMPERATURE) SENSOR



EOT SENSOR/SEALING WASHER



REMOVAL Drain the engine oil (page 3-9). Remove the main pipe side cover (page 23-25). NOTE: Replace the EOT sensor while the engine is cold. EOT SENSOR 2P CONNECTOR Disconnect the EOT sensor 2P connector from the sensor. Remove the EOT sensor and sealing washer.



INSPECTION NOTE: Keep all flammable materials away from the electric heating element. Suspend the EOT sensor in a pan of coolant (50-50 mixture) on an electric heating element and measure the resistance at the EOT sensor terminals as the coolant heats up. NOTE: • Soak the EOT sensor in coolant up to its threads with at least 40 mm (1.57 in) from the bottom of the pan to the bottom of the sensor. • Keep the temperature constant for 3 minutes before testing. A sudden change of temperature will result in incorrect reading. Do not let the thermometer or EOT sensor touch the pan. Measure the resistance at the EOT sensor terminals as shown. 100°C (212°F) 20°C (68°F) RESISTANCE



2.5 — 2.8 kΩ



0.16 — 0.27 kΩ EOT SENSOR



If the resistance is out of specification at any temperature listed, replace the EOT sensor.



INSTALLATION NOTE: Always replace a sealing washer with a new one.



EOT SENSOR



SEALING WASHER



Install the new sealing washer and EOT sensor. Tighten the EOT sensor to the specified torque. TORQUE: 18 N•m (1.8 kgf•m, 13 lbf•ft) Connect the EOT sensor 2P connector. Install the main pipe side cover (page 23-25). Fill the recommended engine oil (page 3-9).



EOT SENSOR 2P CONNECTOR



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ANF125/M-5 ADDENDUM



CHARGING SYSTEM DIAGRAM IGNITION SWITCH REGULATOR/ RECTIFIER MAIN FUSE 15A



ALTERNATOR BATTERY



R: Red Y: Yellow G: Green W: White



∗ ANF125/ 12V 2.5AH ANF125M/ 12V 3.5AH



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ANF125/M-5 ADDENDUM



CHARGING SYSTEM TROUBLESHOOTING Battery is damaged or weak Remove the battery (page 15-4). Check the battery condition using the recommended battery tester.



Incorrect



• Faulty battery



RECOMMENDED BATTERY TESTER: BM–210 or BATTERY MATE or equivalent Correct Install the battery (page 15-4). Check the battery current leakage (Leak test: page 15-7).



Incorrect



SPECIFIED CURRENT LEAKAGE: 0.1 mA max



Disconnect the regulator/rectifier 6P connector and recheck the battery current leakage.



Incorrect



Correct



Correct Measure and record the battery voltage using a digital multimeter (page 15-4). Start the engine. Measure the charging voltage (page 16-6). Compare the measurements to result of the following calculation. STANDARD: Measured BV < Measured CV < 15.5 V • BV=Battery Voltage • CV=Charging Voltage



• Shorted wire harness • Faulty regulator/rectifier • Faulty ignition switch



Correct



• Faulty battery



Incorrect Check the alternator charging coil (page 22104). STANDARD: 0.2 – 1.0 Ω (20°C/68°F)



Incorrect



Correct



• Faulty charging coil



• Perform the regulator/rectifier wire harness inspection (page 22-104)



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ANF125/M-5 ADDENDUM



IGNITION SYSTEM DIAGRAM Refer to ANF125 Shop Manual (62KPHLM3) for troubleshooting in this section. IGNITION IGNITION SWITCH COIL MAIN FUSE 15A



ECM



REGULATOR/RECTIFIER



SENSOR UNIT



SPARK PLUG



IGNITION PULSE GENERATOR



EOT SENSOR



ALTERNATOR BANK ANGLE SENSOR



BATTERY ∗ ANF125/12V 2.5AH ANF125M/12V 3.5AH



R: Red Bl: Black Bu: Blue P: Pink G: Green Y: Yellow W: White



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ANF125/M-5 ADDENDUM



ELECTRIC STARTER SYSTEM DIAGRAM Refer to ANF125 Shop Manual (62KPHAM2) for troubleshooting in this section. STARTER SWITCH



STARTER RELAY



REGULATOR/RECTIFIER



IGNITION SWITCH



STARTER MOTOR



MAIN FUSE 15A BATTERY



R: Red Y: Yellow Bl: Black Bu: Blue W: White G: Green



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ANF125/M-5 ADDENDUM



LIGHTS/METERS/SWITCHES SYSTEM LOCATION Refer to ANF125 Shop Manual (62KPHAM2) for troubleshooting in this section.



TURN SIGNAL RELAY FRONT BRAKE LIGHT SWITCH



TURN SIGNAL SWITCH



IGNITION SWITCH



RIGHT FRONT TURN SIGNAL LIGHT



RIGHT REAR TURN SIGNAL LIGHT BRAKE/TAIL LIGHT



FUEL LEVEL SENSOR HORN SWITCH



LEFT FRONT TURN SIGNAL LIGHT



HORN



FUSES 15A, 10A



LEFT REAR TURN SIGNAL LIGHT



BATTERY ECM REAR BRAKE LIGHT SWITCH



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ANF125/M-5 ADDENDUM



FUEL METER/FUEL LEVEL SENSOR



FUEL PUMP 5P (BLACK) CONNECTOR



FUEL METER INSPECTION Turn the ignition switch to “ON” and make sure the fuel meter comes “ON”. If the fuel meter does not indicate properly, preform the following: Remove the body cover (page 23-27). Remove the fuel pump cover (page 24-54).



FUEL METER



Disconnect the fuel pump 5P (Black) connector. Turn the ignition switch “ON” and check the fuel meter. If the fuel meter indication is “Empty”, wire harness is normal. If the fuel meter indication is “Full”, check for short circuit in Yellow/White wire.



FUEL PUMP 5P (BLACK) CONNECTOR



Turn the ignition switch to “OFF”. Ground the fuel pump 5P (Black) connector terminals with a jumper wire. CONNECTION: Yellow/White – Green Turn the ignition switch “ON” and check the fuel meter.



FUEL METER



If the fuel meter indication is “Full”, wire harness is normal. If the fuel meter indication is “Empty”, check for open circuit in Yellow/White wire and green wire. FUEL PUMP If the wires are normal, check the fuel level sensor (see below).



FUEL LEVEL SENSOR INSPECTION Remove the fuel pump (page 24-58). Connect the ohmmeter to the fuel level sensor terminals of the fuel pump 5P (Black) connector. CONNECTION: Yellow/White – Green Inspect the resistance of the float at the top and bottom positions. Resistance (20˚C/68˚F)



FULL



EMPTY



5–7Ω



204 – 210 Ω



If the fuel level sensor is normal, replace the meter panel with a new one, and recheck.



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ANF125/M-5 ADDENDUM



MEMO



24-78



ANF125/M-5 ADDENDUM



ANF125:



WIRING DIAGRAMS



24-79



ANF125M:



ANF125/M-5 ADDENDUM



24-80



ANF125/M-5 ADDENDUM



TROUBLESHOOTING ENGINE DOES NOT START OR IS HARD TO START Possible cause 1. Check the charging system



Abnormal



• Faulty the battery • Faulty the charging system



Abnormal



• Faulty ECM



Normal



2. Check the PGM-FI system



Normal



3. Check for operating sound of the fuel pump



Sound not heard



• Loose or disconnected fuel pump connector • Broken or shorted fuel pump wire • Faulty fuel pump



Sound heard



4. Inspect the fuel pressure and fuel flow



Abnormal



• Faulty fuel pump • Faulty ECM



Weak or no spark



• • • • •



Faulty spark plug Fouled spark plug Broken or shorted spark plug wire Faulty ignition pulse generator Loose or disconnected ignition system wires



Low compression



• • • • •



Valve stuck open Worn cylinder and piston ring Damaged cylinder head gasket Seized valve Improper valve timing



Normal



5. Perform a spark test



Good spark



6. Test cylinder compression



Compression normal



7. Starting following normal procedure Engine does not start



Engine starts but stops



• Intake manifold leaking • Improper ignition timing (Faulty ignition pulse generator) • Fuel contaminated



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ANF125/M-5 ADDENDUM



8. Remove and inspect spark plug



Wet plug



• Clogged air cleaner • Faulty ECM



Dry plug



• Faulty injector



ENGINE LACKS POWER 1. Raise wheel off the ground and spin by hand



Possible cause Wheels do not spin freely



• Brake dragging • Worn or damaged wheel bearing



Pressure low



• Faulty tire valve • Punctured tire



Engine speed doesn't change accordingly when gear is changed



• • • • •



Clutch slipping Worn clutch discs/plates Warped clutch discs/plates Weak clutch spring Additive in engine oil



Engine speed does not increase



• • • •



Air cleaner dirty Restricted fuel flow Clogged muffler Pinched fuel tank breather



Incorrect



• Faulty ECM • Faulty ignition pulse generator



Incorrect



• • • •



Abnormal



• Faulty fuel pump • Faulty ECM



Fouled or discolored



• Faulty spark plug



Wheel spins freely



2. Check tire pressure Pressure normal



3. Accelerate rapidly from low to second Engine speed reduced when gear is changed 4. Accelerate lightly Engine speed increase



5. Check ignition timing Correct



6. Test cylinder compression Normal



7. Inspect fuel pressure and fuel flow



Valve stuck open Worn cylinder and piston rings Leaking head gasket Improper valve timing



Normal



8. Remove spark plug Not fouled or discolored



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ANF125/M-5 ADDENDUM



9. Check oil level and condition



Incorrect



• Oil level too high • Oil level too low • Contaminated oil



Valve train not lubricated properly



• Clogged oil passage • Clogged oil control orifice



Overheating



• Excessive carbon build-up in combustion chamber • Use of poor quality fuel • Wrong type of fuel • Clutch slipping



Engine knocks



• Worn piston and cylinder • Wrong type of fuel • Excessive carbon build-up in combustion chamber • Ignition timing to advanced (faulty ECM) • Lean fuel mixture (faulty injector)



Correct



10. Remove the valve adjuster hole cap and inspect lubrication Valve train lubricated properly



11.Check for engine overheating Not overheating



12.Accelerate or run at high speed



Engine does not knock



POOR PERFORMANCE AT LOW AND IDLE SPEED Possible cause 1. Check ignition timing



Incorrect



• Improper ignition timing (Faulty ignition pulse generator)



Abnormal



• Faulty fuel pump • Faulty ECM



Leaking



• Loose intake manifold band or mounting bolts • Damaged intake manifold



Correct



2. Inspect the fuel pressure and fuel flow Normal



3. Check for leaks in the intake manifold Not leak



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ANF125/M-5 ADDENDUM



4. Perform spark test



Weak or intermittent spark



Good spark



• • • • • • • •



Faulty spark plug Faulty carbon or wet fouled spark plug Faulty ECM Faulty ignition coil Broken or shorted spark plug wire Faulty ignition pulse generator Faulty ignition switch Loose or disconnected ignition system wires



• Faulty injector



POOR PERFORMANCE AT HIGH SPEED Possible cause 1. Check ignition timing



Incorrect



• Faulty ECM



Abnormal



• Faulty fuel pump • Faulty ECM



Incorrect



• Camshaft not installed properly



Weak



• Faulty valve spring



Correct



2. Inspect the fuel pressure and fuel flow Normal



3. Check valve timing Correct



4. Check valve spring



Not weak



• Faulty injector



24-84