20 TROUBLESHOOTING 98
Faults Possible cause Action
Engine stalls or is popping into the
carburetor
Lack of fuel
(All SX models)
– Turn handle 1 of the fuel tap to the ON
position. (Figure 601185-10 p. 14)
(All XC models)
– Turn handle 1 of the fuel tap to the ON
position. (Figure 601157-11 p. 15)
– Refuel. ( p. 26)
Engine takes in bad air – Check the intake flange and carburetor for
tightness.
The connector or ignition coil is loose
or oxidized
– Clean the 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. 82)
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. 82)
–
Refill with coolant. x ( p. 83)
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. 91)
Water in the gear oil Damaged shaft seal ring or water
pump
– Check the shaft seal ring and water pump.
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