TROUBLESHOOTING
9-1
EAS28450
TROUBLESHOOTING
EAS28460
GENERAL INFORMATION
NOTE:
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.
EAS28470
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 filter
• Clogged fuel strainer
• Clogged fuel tank drain hose
• Clogged rollover valve hose
• Deteriorated or contaminated fuel
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
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
EAS28490
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 2006 FZ1-N
Page 1: ...2006 2D1 28197 E0 FZ1 N V FZ1 S V SERVICE MANUAL ...
Page 6: ......
Page 8: ......
Page 26: ...SPECIAL TOOLS 1 17 ...
Page 43: ...TIGHTENING TORQUES 2 16 ...
Page 52: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25 EAS20410 LUBRICATION DIAGRAMS ...
Page 54: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 ...
Page 56: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 ...
Page 58: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31 ...
Page 59: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 32 1 Main axle 2 Oil delivery pipe 3 Drive axle ...
Page 60: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 ...
Page 61: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 34 1 Cylinder head 2 Crankshaft ...
Page 62: ...COOLING SYSTEM DIAGRAMS 2 35 EAS20420 COOLING SYSTEM DIAGRAMS ...
Page 63: ...COOLING SYSTEM DIAGRAMS 2 36 1 Water pump 2 Radiator 3 Radiator fan ...
Page 64: ...COOLING SYSTEM DIAGRAMS 2 37 ...
Page 65: ...COOLING SYSTEM DIAGRAMS 2 38 1 Radiator cap 2 Radiator 3 Oil cooler 4 Thermostat ...
Page 66: ...CABLE ROUTING 2 39 EAS20430 CABLE ROUTING ...
Page 68: ...CABLE ROUTING 2 41 ...
Page 70: ...CABLE ROUTING 2 43 ...
Page 72: ...CABLE ROUTING 2 45 ...
Page 74: ...CABLE ROUTING 2 47 ...
Page 76: ...CABLE ROUTING 2 49 ...
Page 78: ...CABLE ROUTING 2 51 ...
Page 80: ...CABLE ROUTING 2 53 ...
Page 82: ...CABLE ROUTING 2 55 ...
Page 85: ......
Page 122: ...ELECTRICAL SYSTEM 3 37 A FZ1 N B FZ1 S ...
Page 125: ......
Page 144: ...REAR WHEEL 4 19 WARNING EWA13500 Make sure the brake hose is routed prop erly ...
Page 199: ...CHECKING THE TRANSMISSION 5 91 INSTALLING THE TRANSMISSION 5 92 ...
Page 305: ...WATER PUMP 6 13 ...
Page 324: ......
Page 325: ...IGNITION SYSTEM 8 1 EAS27090 IGNITION SYSTEM EAS27110 CIRCUIT DIAGRAM ...
Page 329: ...ELECTRIC STARTING SYSTEM 8 5 EAS27160 ELECTRIC STARTING SYSTEM EAS27170 CIRCUIT DIAGRAM ...
Page 335: ...CHARGING SYSTEM 8 11 EAS27200 CHARGING SYSTEM EAS27210 CIRCUIT DIAGRAM ...
Page 336: ...CHARGING SYSTEM 8 12 2 Rectifier regulator 3 A C magneto 6 Fuse main 7 Battery ...
Page 338: ...CHARGING SYSTEM 8 14 ...
Page 339: ...LIGHTING SYSTEM 8 15 EAS27240 LIGHTING SYSTEM EAS27250 CIRCUIT DIAGRAM FZ1 N ...
Page 341: ...LIGHTING SYSTEM 8 17 ET2D1026 CIRCUIT DIAGRAM FZ1 S ...
Page 345: ...SIGNALING SYSTEM 8 21 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM ...
Page 351: ...COOLING SYSTEM 8 27 EAS27300 COOLING SYSTEM EAS27310 CIRCUIT DIAGRAM ...
Page 354: ...COOLING SYSTEM 8 30 ...
Page 355: ...FUEL INJECTION SYSTEM 8 31 EAS27330 FUEL INJECTION SYSTEM EAS27340 CIRCUIT DIAGRAM ...
Page 399: ...FUEL PUMP SYSTEM 8 75 EAS27550 FUEL PUMP SYSTEM EAS27560 CIRCUIT DIAGRAM ...
Page 402: ...FUEL PUMP SYSTEM 8 78 ...
Page 403: ...IMMOBILIZER SYSTEM 8 79 EAS27640 IMMOBILIZER SYSTEM EAS27650 CIRCUIT DIAGRAM ...
Page 411: ...IMMOBILIZER SYSTEM 8 87 a Light on b Light off ...
Page 412: ...IMMOBILIZER SYSTEM 8 88 ...
Page 413: ...ELECTRICAL COMPONENTS 8 89 EAS27970 ELECTRICAL COMPONENTS ...
Page 415: ...ELECTRICAL COMPONENTS 8 91 ...
Page 417: ...ELECTRICAL COMPONENTS 8 93 EAS27980 CHECKING THE SWITCHES ...
Page 437: ...ELECTRICAL COMPONENTS 8 113 ...
Page 445: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...