FEISHEN K550ATV EEC 4x4, Owner'S Manual

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Seized or damaged piston
IGNITION SYSTEM
Battery Ignition system
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Improperly charged battery
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Faulty igniter unit
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Faulty battery
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Faulty pick up coil
Fuse
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Broken magneto
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Burnt out, improper connection woodruff key
Spark plug Switch
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Improper plug gap
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Faulty main switch
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Worn electrodes
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Faulty “ENGINE STOP”
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Wire between terminals broken switch
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Improper heat range
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Faulty brake switch
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Faulty spark plug cap Wiring
Ignition coil
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Loose battery terminal
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Broken or shorted primary/
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Loose coupler connection
secondary coil
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Improperly grounded
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Faulty high tension cord
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Broken wire harness
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Broken ignition coil body
POOR IDLE SPEED PERFORMANCE
Air cleaner
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Clogged air cleaner element
Ignition system
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Fault spark plug
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Fault high tension cord
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Fault igniter unit
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Fault pick up coil
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Fault ignition coil
Valve system
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Improperly adjusted
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Valve clearance
POOR MEDIUM AND HIGH SPEED PERFORMANCE
Air cleaner
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Clogged air cleaner element
POOR SPEED PERFORMANCE
Ignition system Compression system
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Dirty spark plug
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Worn cylinder
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Improper heat range
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Worn or seized piston ring
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Faulty igniter unit
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Cylinder head gasket broken
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Faulty pick up coil
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Cylinder gasket broken
Fuel system
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Carbon deposit build up