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Troubleshooting Guide
Valve not seating properly (valve bent, de-
formed, worn, or carbon accumulation on
the seating surface)
Decompression trouble
Other:
Faulty CDI unit
Engine oil level to high
Engine oil viscosity too high
Brake dragging
Drive train trouble

Engine overheating

Clutch slipping
Poor Running or No Power at High
Speed:
Firing incorrect:
Spark plug dirty, broken, or gap malad-
justed
Spark plug cap or high tension wiring trou-
ble
Spark plug cap shorted or not in good con-
tact
Spark plug incorrect heat value
Faulty CDI unit
Crankshaft sensor trouble
Flywheel damage
Ignition coil trouble
Wiring connector not in good contact
Fuel/air mixture incorrect:
Choke plunger stuck open
Hot starter plunger stuck open
Main jet clogged or wrong size
Jet needle or needle jet worn
Air jet clogged
Fuel level in carburetor float bowl too high
or too low
Needle Jet, or air passage clogged
Air cleaner clogged, poorly sealed, or miss-
ing
Air cleaner duct loose
Water or foreign matter in fuel
Carburetor holder loose
Fuel tank cap air vent obstructed
Fuel tap clogged
Fuel line clogged
Compression low:
Spark plug loose
Cylinder head not sufficiently tightened
down
No valve clearance
Cylinder, piston worn
Piston ring bad (worn, weak, broken, or
sticking)
Piston ring/groove clearance excessive
Cylinder head gasket damaged
Cylinder head warped
Valve spring broken or weak
Valve not seating properly (valve bent, de-
formed, worn, carbon accumulation on
the seating surface.)
Decompression trouble
Knocking:
Carbon built up in combustion chamber
Fuel poor quality or incorrect
Spark plug incorrect heat valve
Faulty CDI unit
Other:
Throttle valve won't fully open
Brake dragging
Air cleaner clogged
Water or foreign matter in fuel
Clutch slipping
Overheating
Engine oil level too high
Engine oil viscosity too high
Drive train trouble
Crankshaft bearing worn or damage
Engine Overheating:
Firing incorrect:
Spark plug dirty, broken, or maladjusted
Spark plug incorrect
Faulty CDI unit
Fuel/air mixture incorrect:
Main jet clogged or wrong size
Fuel level in carburetor float bowl too low
Carburetor holder loose
Air cleaner clogged, poorly sealed, or miss-
ing
Air cleaner duct loose
Hot starter plunger stuck open
Compression high:
Carbon built up in combustion chamber
Engine load faulty:
Clutch slipping
Engine oil level too high
Engine oil viscosity too high
Brake dragging
Drive train trouble
Lubrication inadequate:
Engine oil level too low
Engine oil poor quality or incorrect
Coolant incorrect:
Coolant level too low
Coolant deteriorated
Cooling system component incorrect:
Radiator clogged
Radiator cap trouble
Water pump not rotating
Clutch Operation Faulty:
Clutch slipping:
No clutch lever play
Clutch cable maladjusted
APPENDIX 17-9

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   Also See for Kawasaki KX450F

This manual is also suitable for:

Kx450f 2006Kxf 450

Comments to this Manuals

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  • paulo sergio borges Apr 13, 2016 05:03:
    quantidade oleo suspencao kx 450 f