Overheating
Firing incorrect:
- Spark plug dirty, broken, or maladjusted
- Spark plug incorrect
- IC Igniter trouble
Muffler overheating:
- For KLEEN, do not run the engine even if with only one cylinder misfiring or poor running (Request the nearest service facility to correct it)
- For KLEEN, do not push-start with a dead battery (Connect another full-charged battery with jumper cables, and start the engine using the electric starter)
- For KLEEN. do not start the engine under misfire due to spark plug fouling or poor connection of the stick coil
- For KLEEN, do not coast the motorcycle with the ignition switch off (Turn the ignition switch ON and run the engine)
- IC igniter or fuel cut valve trouble
- IC igniter trouble
Fuel/air mixture incorrect:
- Main jet clogged or wrong size
- Fuel level in carburetor float bowl too low
- Carburetor holder loose
- Air cleaner duct loose
- Air cleaner poorly sealed, or missing
- Air cleaner О-ring damaged
- Air cleaner clogged
- Fuel pump trouble
- Fuel pump relay trouble
- Fuel filter clogged
Compression high:
- Carbon built up in combustion chamber
Engine load faulty:
- Clutch slipping
- Engine oil level too high
- Engine oil viscosity too high
- Drive train trouble
- Brake dragging
Lubrication inadequate:
- Engine oil level too low
- Engine oil poor quality or incorrect
Oil cooler incorrect:
- Oil cooler clogged
Gauge incorrect:
- Water temperature meter broken
- Water temperature sensor broken
Coolant incorrect:
- Coolant level too low
- Coolant deteriorated
Cooling system component incorrect:
- Radiator fin damaged
- Radiator clogged
- Thermostat trouble
- Radiator cap trouble
- Radiator fan switch trouble
- Fan motor broken
- Fan blade damaged
- Water pump not turning
- Water pump impeller damaged
Overcooling
Gauge incorrect:
- Water temperature meter broken
- Water temperature sensor broken
Cooling system component incorrect:
- Radiator fan switch trouble
- Thermostat trouble