Use and Care Manual

OWNER’S/OPERATOR’S
MANUAL
07.0
17. TROUBLESHOOTING
17-5
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
Fuel system

Carbon deposit buildup

Clogged fuel tank breather hole

Improper adjusted valve

Clogged air cleaner element clearance

Clogged jet

Improper contacted

Improperly adjusted fuel level valve and valve seat

Improper carburetor air vent hose

Faulty valve timing
setting
Clutch

Refer to
“
CLUTCH SLIPPING
/DRAGGING
”
section
Engine oil

Improper oil level(low or
over Oil level)
Ignition system

Faulty spark plug

Faulty high tension cord

Faulty ignitor unit

Faulty pick up coil

Faulty ignition coil
Valve system

Improperly adjusted valve
clearance