GAS GAS MC 125 2022, Owner'S Manual

Page: 113 / 131

TROUBLESHOOTING 19
111
Faults Possible cause Action
Engine overheats Too little coolant in cooling system
–
Check the cooling system for leakage.
–
Check the coolant level. ( p. 90)
Too little air stream
–
Switch off engine when stationary.
Radiator fins very dirty
–
Clean the radiator fins.
Foam formation in cooling system
–
Drain the coolant. ( p. 91)
–
Refill with coolant. ( p. 92)
Damaged cylinder head or cylin-
der head gasket
–
Check the cylinder head and cylinder head
gasket.
Bent radiator hose
–
Change the radiator hose.
White smoke emission (steam in
exhaust gas) Damaged cylinder head or cylin-
der head gasket
–
Check the cylinder head and cylinder head
gasket.
Gear oil exits at the vent hose Too much gear oil added
–
Check the gear oil level. ( p. 103)
Water in the gear oil Damaged radial shaft seal ring or
water pump
–
Check the radial shaft seal ring and the
water pump.