21-1
21
21. TROUBLESHOOTING
ENGINE WON’T START
OR IS HARD TO START
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21-1
ENGINE LACKS POWER
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21-2
POOR PERFORMANCE
(AT LOW AND IDLE SPEED)
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21-3
POOR PERFORMANCE
(AT HIGH SPEED)
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21-4
ENGINE WON’T START OR IS HARD TO START
1. Check fuel flow to carburetor.
Fuel not supplied
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Fuel tank empty.
to the carburetor
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Clogged fuel tube or fuel filter.
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Sticking float valve.
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Clogged fuel tank cap hole.
2. Check the spark plug.
Weak or no
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Faulty spark plug.
spark
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Contaminated spark plug.
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Faulty CDI unit.
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Disconnected or shorted high tension wires.
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Faulty pulse generator.
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Faulty main switch.
3. Test cylinder compression.
Low compression
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Low speed of starter crank.
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Incorrect valve clearance.
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Faulty valve seat.
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Worn cylinder and piston rings.
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Seized valve.
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Improper valve timing.
4. Start by following normal
Engine starts
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Improper chock valve operation.
procedure.
but stops.
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Improper chock cable free play.
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Carburetor incorrectly adjusted.
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Improper ignition timing.
(Faulty CDI unit or pulse generator.)
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Fuel contaminated.
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Lean fuel mixture.
5. Remove and inspect spark plug.
Wet plug
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Carburetor flooded.
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Throttle valve open.
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Choke closed.
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Air cleaner dirty.
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Rich fuel mixture.
Fuel is supplied
Good spark
Compression normal
Engine does not start.
Dry plug
INSPECTION
CAUSE OF TROUBLE
6. Close the choke and start
engine again.
POOR HANDLING
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21-4
POOR FRONT/REAR SUSPENSION
PERFORMANCE
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21-5
FUEL GAUGE
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21-5
Содержание ROADWIN VJ125 - SERVICE
Страница 3: ......
Страница 23: ...MEMO...
Страница 39: ...MEMO...
Страница 47: ...4 0 FUEL SYSTEM...
Страница 60: ...MEMO...
Страница 61: ...5 0 COOLING SYSTEM...
Страница 64: ...MEMO...
Страница 65: ...6 0 ENGINE REMOVAL INSTALLATION...
Страница 69: ...7 0 CLUTCH GEARSHIFT...
Страница 82: ...MEMO...
Страница 83: ...8 0 A C GENERATOR STARTER CLUTCH...
Страница 93: ...9 0 CYLINDER HEAD VALVES...
Страница 109: ...10 0 CYLINDER PISTON...
Страница 116: ...MEMO...
Страница 117: ...11 0 CRANKCASE TRANSMISSION CRANKSHAFT...
Страница 130: ...MEMO...
Страница 131: ...12 0 EXTERNAL PARTS...
Страница 137: ...13 0 FRONT WHEEL FRONT FORK STEERING...
Страница 161: ...14 0 REAR WHEEL REAR SUSPENSION...
Страница 174: ...MEMO...
Страница 175: ...15 0 HYDRAULIC BRAKE FRONT REAR...
Страница 200: ...MEMO...
Страница 208: ...MEMO...
Страница 216: ...MEMO...
Страница 228: ...MEMO...
Страница 241: ...MEMO...
Страница 249: ...MEMO...
Страница 250: ...MEMO...
Страница 251: ...SERVICEMANUAL 2004 1 PRINTED 2004 1 PUBLICATION NO C COPY...