17. TROUBLESHOOTING
POOR MEDIUM AND HIGH SPEED PERFORMANCE
Carburetor Air cleaner
ŸImproperly adjusted fuel level ŸClogged air cleaner element
ŸClogged main nozzle
ŸClogged or loose pilot jet
POOR SPEED PERFORMANCE
Ignition system Compression system
ŸDirty spark plug ŸWorn cylinder
ŸImproper heat range ŸWorn or seized piston ring
ŸFaulty igniter unit ŸCylinder head gasket broken
ŸFaulty pick up coil ŸCylinder gasket broken
Fuel system ŸCarbon deposit build up
ŸClogged fuel tank breather hole ŸImproperly adjusted valve
ŸClogged air cleaner element clearance
ŸClogged jet ŸImproperly contacted
ŸImproperly adjusted fuel level valve and valve seat
ŸImproper carburetor air vent hose ŸFaulty valve timing
setting Clutch
Engine oil
ŸImproperly oil level(low or
over Oil level)
Ignition system
ŸFaulty spark plug
ŸFaulty high tension cord
ŸFaulty ignitor unit
ŸFaulty pick up coil
ŸFaulty ignition coil
ŸValve system
ŸImproperly adjusted valve
clearance
105
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