16. TROUBLESHOOTING
POOR MEDIUM AND HIGH SPEED PERFORMANCE
EFI Air cleaner
the fuel pressure not correct Clogged air cleaner element
fuel filter clogging
fuel injector clogging
POOR SPEED PERFORMANCE
Ignition system Compression system
Dirty spark plug Worn cylinder
Improper heat range Worn or seized piston ring
Faulty igniter unit Cylinder head gasket broken
Faulty pick up coil Cylinder gasket broken
Carbon deposit build up
Fuel system Improperly adjusted valve
Clogged fuel cleaner element clearance
Clogged jet Improperly contacted
Improperly adjusted fuel level valve and valve seat
Faulty valve timing
Clutch
Refer to “CLUTCH SLIPPING
/DRAGGING” section
Engine oil
Improperly oil level(low or
over Oil level)
Ignition system
Faulty spark plug
Faulty high tension cord
Faulty igniter unit
Faulty pick up coil
Faulty ignition coil
Improperly adjusted valve
clearance
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