TROUBLESHOOTING
9-1
EAS28451
TROUBLESHOOTING
EAS28460
GENERAL INFORMATION
TIP
The following guide for troubleshooting does
not cover all the possible causes of trouble. It
should be helpful, however, as a guide to basic
troubleshooting. Refer to the relative proce-
dure in this manual for checks, adjustments,
and replacement of parts.
EAS30410
STARTING FAILURES
Engine
1. Cylinder(s) and cylinder head(s)
• Loose spark plug
• Loose cylinder head or cylinder
• Damaged cylinder head gasket
• Damaged cylinder gasket
• Worn or damaged cylinder
• Incorrect valve clearance
• Improperly sealed valve
• Incorrect valve-to-valve-seat contact
• Incorrect valve timing
• Faulty valve spring
• Seized valve
2. Piston(s) and piston ring(s)
• Improperly installed piston ring
• Damaged, worn or fatigued piston ring
• Seized piston ring
• Seized or damaged piston
3. Air filter
• Improperly installed air filter
• Clogged air filter element
4. Crankcase and crankshaft
• Improperly assembled crankcase
• Seized crankshaft
Fuel system
1. Fuel tank
• Empty fuel tank
• Clogged fuel tank cap breather hole
• Deteriorated or contaminated fuel
• Clogged or damaged fuel hose
2. Fuel pump
• Faulty fuel pump
• Faulty fuel pump relay
3. Throttle body (-ies)
• Deteriorated or contaminated fuel
• Sucked-in air
Electrical system
1. Battery
• Discharged battery
• Faulty battery
2. Fuse(s)
• Blown, damaged or incorrect fuse
• Improperly installed fuse
3. Spark plug(s)
• Incorrect spark plug gap
• Incorrect spark plug heat range
• Fouled spark plug
• Worn or damaged electrode
• Worn or damaged insulator
4. Ignition coil(s)
• Cracked or broken ignition coil body
• Broken or shorted primary or secondary
coils
5. Ignition system
• Faulty ECU
• Faulty crankshaft position sensor
• Faulty cylinder identification sensor
• Broken pickup rotor straight key
6. Switches and wiring
• Faulty main switch
• Faulty engine stop switch
• Broken or shorted wiring
• Faulty neutral switch
• Faulty start switch
• Faulty sidestand switch
• Faulty clutch switch
• Improperly grounded circuit
• Loose connections
7. Starting system
• Faulty starter motor
• Faulty starter relay
• Faulty starting circuit cut-off relay
• Faulty starter clutch
EAS30440
INCORRECT ENGINE IDLING SPEED
Engine
1. Cylinder(s) and cylinder head(s)
• Incorrect valve clearance
• Damaged valve train components
2. Air filter
• Clogged air filter element
Fuel system
1. Throttle body (-ies)
• Damaged or loose throttle body joint
• Improperly synchronized throttle bodies
• Improperly adjusted engine idling speed
(idle adjusting screw)
Summary of Contents for Fazer FZ8-SA
Page 1: ...SERVICE MANUAL FZ8NA FZ8SA 2011 1BD 28197 E0 ...
Page 6: ......
Page 8: ......
Page 33: ...FEATURES 1 24 ...
Page 48: ...SPECIAL TOOLS 1 39 ...
Page 67: ...TIGHTENING TORQUES 2 18 ...
Page 75: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 26 ...
Page 78: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 EAS20410 LUBRICATION DIAGRAMS ...
Page 80: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31 2 3 4 5 6 7 8 1 ...
Page 82: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 ...
Page 84: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 ...
Page 85: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 36 1 Main axle 2 Oil pipe 3 Drive axle ...
Page 86: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 ...
Page 88: ...COOLING SYSTEM DIAGRAMS 2 39 EAS20420 COOLING SYSTEM DIAGRAMS ...
Page 89: ...COOLING SYSTEM DIAGRAMS 2 40 1 Thermostat 2 Water pump 3 Radiator 4 Radiator fan 5 Oil cooler ...
Page 90: ...COOLING SYSTEM DIAGRAMS 2 41 ...
Page 91: ...COOLING SYSTEM DIAGRAMS 2 42 1 Radiator cap 2 Radiator 3 Oil cooler 4 Thermostat ...
Page 92: ...CABLE ROUTING 2 43 EAS20430 CABLE ROUTING Handlebar front view FZ8NA ...
Page 94: ...CABLE ROUTING 2 45 Handlebar front view FZ8SA ...
Page 96: ...CABLE ROUTING 2 47 Handlebar right side view ...
Page 98: ...CABLE ROUTING 2 49 Engine right side view ...
Page 100: ...CABLE ROUTING 2 51 Handlebar left side view ...
Page 102: ...CABLE ROUTING 2 53 Engine left side view ...
Page 104: ...CABLE ROUTING 2 55 Rear frame left side view ...
Page 106: ...CABLE ROUTING 2 57 Frame top view ...
Page 108: ...CABLE ROUTING 2 59 Frame top view ...
Page 110: ...CABLE ROUTING 2 61 Frame top view ...
Page 112: ...CABLE ROUTING 2 63 Fuel tank left and bottom view ...
Page 114: ...CABLE ROUTING 2 65 Front brake right side view ...
Page 116: ...CABLE ROUTING 2 67 Front brake left side ...
Page 118: ...CABLE ROUTING 2 69 Rear brake ...
Page 120: ...CABLE ROUTING 2 71 Hydraulic unit top view ...
Page 122: ...CABLE ROUTING 2 73 Hydraulic unit front view ...
Page 124: ...CABLE ROUTING 2 75 Hydraulic unit left side view ...
Page 126: ...CABLE ROUTING 2 77 ...
Page 129: ......
Page 164: ...PERIODIC MAINTENANCE 3 35 ...
Page 262: ...CHAIN DRIVE 4 95 ...
Page 358: ...TRANSMISSION 5 93 ...
Page 387: ...THROTTLE BODIES 7 14 ...
Page 388: ...AIR INDUCTION SYSTEM 7 15 EAS27040 AIR INDUCTION SYSTEM ...
Page 395: ......
Page 396: ...IGNITION SYSTEM 8 1 EAS27090 IGNITION SYSTEM EAS27110 CIRCUIT DIAGRAM ...
Page 398: ...IGNITION SYSTEM 8 3 ...
Page 405: ...IGNITION SYSTEM 8 10 ...
Page 406: ...ELECTRIC STARTING SYSTEM 8 11 EAS27160 ELECTRIC STARTING SYSTEM EAS27170 CIRCUIT DIAGRAM ...
Page 408: ...ELECTRIC STARTING SYSTEM 8 13 ...
Page 414: ...CHARGING SYSTEM 8 19 EAS27200 CHARGING SYSTEM EAS27210 CIRCUIT DIAGRAM ...
Page 416: ...CHARGING SYSTEM 8 21 ...
Page 419: ...CHARGING SYSTEM 8 24 ...
Page 420: ...LIGHTING SYSTEM 8 25 EAS27240 LIGHTING SYSTEM EAS27250 CIRCUIT DIAGRAM ...
Page 422: ...LIGHTING SYSTEM 8 27 ...
Page 426: ...SIGNALING SYSTEM 8 31 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM ...
Page 428: ...SIGNALING SYSTEM 8 33 ...
Page 435: ...SIGNALING SYSTEM 8 40 ...
Page 436: ...COOLING SYSTEM 8 41 EAS27300 COOLING SYSTEM EAS27310 CIRCUIT DIAGRAM ...
Page 438: ...COOLING SYSTEM 8 43 ...
Page 442: ...FUEL INJECTION SYSTEM 8 47 EAS27331 FUEL INJECTION SYSTEM EAS27340 CIRCUIT DIAGRAM ...
Page 444: ...FUEL INJECTION SYSTEM 8 49 ...
Page 504: ...FUEL PUMP SYSTEM 8 109 EAS27550 FUEL PUMP SYSTEM EAS27560 CIRCUIT DIAGRAM ...
Page 506: ...FUEL PUMP SYSTEM 8 111 ...
Page 510: ...IMMOBILIZER SYSTEM 8 115 EAS27640 IMMOBILIZER SYSTEM EAS27650 CIRCUIT DIAGRAM ...
Page 512: ...IMMOBILIZER SYSTEM 8 117 ...
Page 521: ...IMMOBILIZER SYSTEM 8 126 ...
Page 522: ...ABS ANTI LOCK BRAKE SYSTEM 8 127 EAS28790 ABS ANTI LOCK BRAKE SYSTEM EAS27730 CIRCUIT DIAGRAM ...
Page 524: ...ABS ANTI LOCK BRAKE SYSTEM 8 129 ...
Page 526: ...ABS ANTI LOCK BRAKE SYSTEM 8 131 EAS27740 ABS COMPONENTS CHART ...
Page 528: ...ABS ANTI LOCK BRAKE SYSTEM 8 133 EAS27750 ABS COUPLER LOCATION CHART ...
Page 532: ...ABS ANTI LOCK BRAKE SYSTEM 8 137 EAS27810 BASIC PROCESS FOR TROUBLESHOOTING ...
Page 570: ...ELECTRICAL COMPONENTS 8 175 EAS27973 ELECTRICAL COMPONENTS ...
Page 572: ...ELECTRICAL COMPONENTS 8 177 ...
Page 574: ...ELECTRICAL COMPONENTS 8 179 EAS27981 CHECKING THE SWITCHES ...
Page 576: ...ELECTRICAL COMPONENTS 8 181 ...
Page 598: ...ELECTRICAL COMPONENTS 8 203 ...
Page 606: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...