5-2
FUEL SYSTEM
TROUBLESHOOTING
The vehicle does not start.
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No gasoline in fuel tank.
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Fuel is not coming out of carburetor.
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Too much fuel is flowing into cylinder.
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No spark emitted from spark plug.
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Air cleaner is blocked.
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Suction system is experiencing secondary intake of air.
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Using low quality gasoline.
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Starter is damaged.
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Throttle cable is working improperly.
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Fuel tank is functioning improperly.
Idle is unstable and engine turns off after starting.
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Starter is damaged.
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Ignition system is damaged.
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Using low qualty gasoline.
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Suction system is experiencing secondary intake of air.
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Idle is adjusted improperly.
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Air screw is adjusted improperly.
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Compression pressure is low.
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Air/Fuel mixture is either too lean or rich.
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Carburetor is blocked.
Mis-firing occurs when driving at high speeds.
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Ignition system is damaged.
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Mixture is too lean.
Back firing
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Ignition system is damaged.
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Mixture is too lean.
Insufficient power and high fuel consumption.
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Air cleaner is blocked.
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Ignition system is damaged.
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Mixture is too rich.
Air/Fuel mixture is extremely lean
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Fuel jet is blocked.
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Float valve is damaged.
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Oil level is low.
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Bad ventilation of air in tank cap.
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Fuel strainer screen is blocked.
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Fuel tube is bent, creased or blocked.
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Suction system is receiving secondary suction of air.
Air/Fuel mixture is extremely rich.
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Air jet is blocked.
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Float valve is damaged.
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Oil level is too high.
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Starter is damaged.
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Air cleaner is blocked.
Summary of Contents for S2-250
Page 1: ......
Page 3: ......
Page 23: ...MEMO...
Page 35: ...MEMO...
Page 44: ...MEMO...
Page 45: ...4 0 LUBRICATION SYSTEM ROCKER ARM SHAFT CRANK SHAFT OIL FILTER SCREEN OIL PUMP...
Page 52: ...MEMO...
Page 53: ...5 0 FUEL SYSTEM...
Page 66: ...MEMO...
Page 67: ...6 0 COOLING SYSTEM...
Page 81: ...MEMO...
Page 86: ...MEMO...
Page 87: ...8 0 LH CRANKCASECOVER CONTINUOUSLYVARIABLE TRANSMISSION...
Page 100: ...MEMO...
Page 101: ...9 0 A C GENERATOR STARTER CLUTCH...
Page 107: ...10 0 CYLINDER HEAD VALVE...
Page 116: ...MEMO...
Page 117: ...11 0 CYLINDER PISTON...
Page 125: ...12 0 CRANKSHAFT CRANKCASE...
Page 132: ...MEMO...
Page 133: ...13 0 FINAL REDUCTION...
Page 139: ...14 0 FRONT WHEEL FRONT FORK STEERING BRAKE...
Page 160: ...MEMO...
Page 161: ...15 0 REAR WHEEL BRAKE SUSPENSION REAR SWING ARM...
Page 169: ...16 0 CHARGING SYSTEM REGULATOR RECTIFIER MAIN SWITCH A C GENERATOR...
Page 180: ...MEMO...
Page 188: ...MEMO...
Page 189: ...MEMO...
Page 197: ...MEMO...
Page 199: ...MEMO...
Page 200: ...SERVICEMANUAL 2004 9 PRINTED 2004 9 PUBLICATION NO COPY...