TROUBLESHOOTING
10-1
EAS2GB7405
TROUBLESHOOTING
EAS2GB7406
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 procedure
in this manual for checks, adjustments, and re-
placement of parts.
EAS2GB7407
STARTING FAILURES
Engine
1. Cylinder and cylinder head
• 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 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 breather hose
• Deteriorated or contaminated fuel
• Clogged or damaged fuel hose
2. Fuel pump
• Faulty fuel pump
3. Throttle body
• Deteriorated or contaminated fuel
• Sucked-in air
Electrical system
1. Spark plug
• Incorrect spark plug gap
• Incorrect spark plug heat range
• Fouled spark plug
• Worn or damaged electrode
• Worn or damaged insulator
2. Ignition coil
• Cracked or broken ignition coil body
• Broken or shorted primary or secondary
coils
3. Ignition system
• Faulty ECU
• Faulty crankshaft position sensor
• Broken generator rotor woodruff key
4. Switches and wiring
• Faulty ECU
• Faulty engine stop switch
• Broken or shorted wiring
• Faulty neutral switch
• Improperly grounded circuit
• Loose connections
EAS2GB7408
INCORRECT ENGINE IDLING SPEED
Engine
1. Cylinder and cylinder head
• Incorrect valve clearance
• Damaged valve train components
2. Air filter
• Clogged air filter element
Fuel system
1. Throttle body
• Damaged or loose throttle body joint
• Improperly synchronized throttle bodies
• Improper throttle cable free play
• Flooded throttle body
Electrical system
1. Spark plug
• Incorrect spark plug gap
• Incorrect spark plug heat range
• Fouled spark plug
• Worn or damaged electrode
• Worn or damaged insulator
• Faulty spark plug cap
2. Ignition coil
• Broken or shorted primary or secondary
coils
• Cracked or broken ignition coil
3. Ignition system
• Faulty ECU
• Faulty crankshaft position sensor
• Broken generator rotor woodruff key
Содержание WR250F 2016
Страница 4: ......
Страница 10: ......
Страница 12: ......
Страница 16: ...LOCATION OF IMPORTANT LABELS 1 2 EUR ...
Страница 17: ...LOCATION OF IMPORTANT LABELS 1 3 AUS NZL ZAF ...
Страница 41: ...MULTI FUNCTION DISPLAY 1 27 ...
Страница 78: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25 ...
Страница 80: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 ...
Страница 82: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 ...
Страница 84: ...CABLE ROUTING DIAGRAM 2 31 EAS2GB7073 CABLE ROUTING DIAGRAM ...
Страница 86: ...CABLE ROUTING DIAGRAM 2 33 ...
Страница 88: ...CABLE ROUTING DIAGRAM 2 35 ...
Страница 90: ...CABLE ROUTING DIAGRAM 2 37 ...
Страница 92: ...CABLE ROUTING DIAGRAM 2 39 ...
Страница 94: ...CABLE ROUTING DIAGRAM 2 41 ...
Страница 96: ...CABLE ROUTING DIAGRAM 2 43 ...
Страница 98: ...CABLE ROUTING DIAGRAM 2 45 ...
Страница 142: ...ELECTRICAL SYSTEM 3 42 ...
Страница 152: ...CHASSIS 4 9 ...
Страница 162: ...FRONT WHEEL 5 8 1 1 ...
Страница 226: ...CHAIN DRIVE 5 72 ...
Страница 268: ...ELECTRIC STARTER 6 39 5 Install Bolt 1 O ring 2 TIP Apply the lithium soap based grease on the O ring New ...
Страница 290: ...OIL PUMP AND BALANCER GEAR 6 61 a 2 10 b 2 9 1 b 5 3 a 4 10 5 9 3 E c d 6 7 8 8 b 6 ...
Страница 296: ...GENERATOR AND STARTER CLUTCH 6 67 TIP Install the cover damper assembly with its mark a facing upward 1 a 3 3 2 4 ...
Страница 310: ...TRANSMISSION 6 81 ...
Страница 347: ...CHARGING SYSTEM 9 15 ...
Страница 351: ...LIGHTING SYSTEM 9 19 ...
Страница 359: ...COOLING SYSTEM 9 27 ...
Страница 391: ...FUEL PUMP SYSTEM 9 59 ...
Страница 392: ...ELECTRICAL COMPONENTS 9 60 EAS2GB7381 ELECTRICAL COMPONENTS EAS2GB7382 9 10 11 1 3 2 4 5 6 7 8 ...
Страница 394: ...ELECTRICAL COMPONENTS 9 62 12 11 10 2 3 1 6 7 4 5 8 9 ...
Страница 396: ...ELECTRICAL COMPONENTS 9 64 EAS2GB7383 CHECKING THE SWITCHES 4 1 3 2 E B S E B E B E E B B ...
Страница 397: ...ELECTRICAL COMPONENTS 9 65 1 Engine stop switch 2 Neutral switch 3 Clutch switch 4 Start switch ...
Страница 414: ...ELECTRICAL COMPONENTS 9 82 ...
Страница 425: ......
Страница 426: ...PRINTED IN JAPAN E PRINTED ON RECYCLED PAPER ...