OWNER’S/OPERATOR’S
MANUAL
17. TROUBLESHOOTING
17-4
Auto choke Valve system
Faulty starter plunger
Improperly adjusted
Improper wax operation
valve clearance
POOR MIDDLE AND HIGH SPEED PERFORMANCE
EFI Air cleaner
Improperly adjusted fuel level
Clogged air cleaner element
Clogged main nozzle
Clogged or loose pilot jet
POOR SPEED PERFORMANCE
Ignition system Compression system
Dirty spark plug
Worn cylinder
Improper heat range
Worn or seized piston ring
Faulty ignition unit
Cylinder head gasket broken
Faulty pick up coil
Cylinder gasket broken
Fuel system
Carbon deposit buildup
Clogged fuel tank breather hole
Improper adjusted valve clearance
Clogged air cleaner element
Improper contacted valve and valve seat
Clogged jet
Faulty valve timing
Improperly adjusted fuel level
Clutch
Refer to “CLUTCH SLIPPING
/DRAGGING” section
Engine oil
Improper oil level(low or over Oil level)