20 TROUBLESHOOTING 154
Faults Possible cause Action
Engine overheats. Foam formation in cooling system –
Drain the coolant. x ( p. 130)
–
Fill/bleed the cooling system. x ( p. 131)
Buckled or damaged radiator hose –
Change the radiator hose. x
Thermostat is faulty –
Check the thermostat. x
Fuse 5 blown – Change the fuses of individual power consumers.
( p. 115)
Defect in radiator fan system –
Check the radiator fan system. x
Air in cooling system –
Fill/bleed the cooling system. x ( p. 131)
FI warning lamp (MIL) lights/flashes Defect in fuel injection system – Read out the fault memory using the KTM diag-
nostics tool. x
Engine dies during the journey Lack of fuel – Refuel. ( p. 54)
Fuse 1, 2 or 4 blown – Change the fuses of individual power consumers.
( p. 115)
High oil consumption Engine vent hose bent – Route the vent hose without bends or change it if
necessary.
Engine oil level too high – Check the engine oil level. ( p. 138)
Engine oil too thin (low viscosity) – Change the engine oil and filter, clean the oil
screens. x ( p. 139)
Headlight and parking light are not
functioning
Fuse 7 blown – Change the fuses of individual power consumers.
( p. 115)
Turn signal, brake light and horn not
functioning
Fuse 6 blown – Change the fuses of individual power consumers.
( p. 115)
Time is not (correctly) displayed Fuse 2 blown – Change the fuses of individual power consumers.
( p. 115)
– Set the clock. ( p. 32)
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