TROUBLESHOOTING
92
Faults
Possible cause
Action
Engine stalls or is popping into the
carburetor
Lack of fuel
–
Turn handle
of the fuel tap to the
ON
posi-
tion.
–
Refuel. (
p. 33)
Engine takes in bad air
–
Check the intake flange and carburetor for
tightness.
Socket connector or ignition coil is
loose or oxidized
–
Clean the plug-in connector and treat it with
contact spray.
Engine overheats
Too little coolant in cooling system
–
Check the cooling system for leakage.
–
Check the coolant level. (
p. 77)
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.
x
(
p. 78)
–
Refill with coolant.
x
(
p. 79)
Damaged cylinder head or cylinder
head gasket
–
Check the cylinder head or cylinder head gas-
ket.
Bent radiator hose
–
Change the radiator hose.
x
Incorrect ignition point due to loose
stator
–
Adjust the ignition.
x
White smoke emission (steam in
exhaust gas)
Damaged cylinder head or cylinder
head gasket
–
Check the cylinder head or cylinder head gas-
ket.
Gear oil exits at the vent hose
Too much gear oil added
–
Check the gear oil level. (
p. 88)
Water in the gear oil
Damaged shaft seal ring or water
pump
–
Check the shaft seal ring and water pump.
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