Coleman xt260 Owner's Manual page 111

17. TROUBLESHOOTING
POOR MEDIUM AND HIGH SPEED PERFORMANCE
Carburetor
ŸImproperly adjusted fuel level
ŸClogged main nozzle
ŸClogged or loose pilot jet
POOR SPEED PERFORMANCE
Ignition system
ŸDirty spark plug
ŸImproper heat range
ŸFaulty igniter unit
ŸFaulty pick up coil
Fuel system
ŸClogged fuel tank breather hole
ŸClogged air cleaner element
ŸClogged jet
ŸImproperly adjusted fuel level
ŸImproper carburetor air vent hose ŸFaulty valve timing
setting
Air cleaner
ŸClogged air cleaner element
Compression system
ŸWorn cylinder
ŸWorn or seized piston ring
ŸCylinder head gasket broken
ŸCylinder gasket broken
ŸCarbon deposit build up
ŸImproperly adjusted valve
clearance
ŸImproperly contacted
valve and valve seat
Clutch
ŸRefer to "CLUTCH SLIPPING
/DRAGGING" section
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
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