GAS GAS MC 125 2022 Owner's Manual page 113

Faults
Engine overheats
White smoke emission (steam in
exhaust gas)
Gear oil exits at the vent hose
Water in the gear oil
Possible cause
Too little coolant in cooling system –
Too little air stream
Radiator fins very dirty
Foam formation in cooling system
Damaged cylinder head or cylin-
der head gasket
Bent radiator hose
Damaged cylinder head or cylin-
der head gasket
Too much gear oil added
Damaged radial shaft seal ring or
water pump
TROUBLESHOOTING 19
Action
Check the cooling system for leakage.
–
Check the coolant level. (
–
Switch off engine when stationary.
–
Clean the radiator fins.
–
Drain the coolant. ( p. 91)
–
Refill with coolant. ( p. 92)
–
Check the cylinder head and cylinder head
gasket.
–
Change the radiator hose.
–
Check the cylinder head and cylinder head
gasket.
–
Check the gear oil level. (
–
Check the radial shaft seal ring and the
water pump.
p. 90)
p. 103)
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