GAS GAS MC 85 2021 Owner's Manual page 111

Faults
Engine stalls or is popping into the
carburetor
Engine overheats
White smoke emission (steam in
exhaust gas)
Gear oil exits at the vent hose
Water in the gear oil
Possible cause
The connector or ignition coil is
loose or oxidized
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
Incorrect ignition point due to
loose stator
Damaged cylinder head or cylin-
der head gasket
Too much gear oil added
Damaged radial shaft seal ring or
water pump
TROUBLESHOOTING 19
Action
–
Clean the connector and treat it with con-
tact spray.
Check the cooling system for leaks.
–
Check the coolant level. (
–
Switch off the engine when standing.
–
Clean the radiator fins.
–
Drain the coolant. ( p. 89)
–
Refill with coolant. ( p. 90)
–
Check the cylinder head and cylinder head
gasket.
–
Change the radiator hose.
–
Adjust the ignition.
–
Check the cylinder head and cylinder head
gasket.
–
Check the gear oil level. (
–
Check the radial shaft seal ring and the
water pump.
p. 89)
p. 101)
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