17. TROUBLESHOOTING
OVER HEATING OR OVER-COOLING
OVER HEATING OVER-COOLING
Ignition system Cooling system
ŸImproperly spark plug gap ŸFaulty thermostat
ŸImproper spark plug heat rang ŸFaulty thermo switch
ŸFaulty ignitor unit
Fuel system
ŸImproper carburetor setting
ŸImproper fuel level adjustment
ŸClogged air cleaner element
Compression system
ŸHeavy carbon deposit build-up
ŸImproperly adjusted valve timing
ŸImproperly adjusted valve clearance
Engine oil
ŸIncorrect engine oil level
ŸImproper engine oil quality (High viscosity)
ŸLow engine oil quality
Brakes
ŸDragging brake
Cooling system
ŸInoperative fan motor
ŸFaulty thermostat
ŸFaulty thermo switch
ŸIncorrect coolant level (low coolant level)
ŸFaulty radiator (Clogged, damage)
ŸFaulty radiator cap
ŸImpeller shaft gear malfunction (bent dowel pin, gear)
ŸDamaged impeller shaft
ŸDisconnected fan motor connector
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