Owner's manual

TROUBLESHOOTING 155
Faults Possible cause Action
Engine overheats. Radiator fins very dirty – Clean radiator fins.
Foam formation in cooling system –
Drain the coolant. x ( p. 140)
–
Fill the cooling system. x ( p. 141)
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. 122)
Defect in radiator fan system –
Check the radiator fan system. x
Air in cooling system –
Fill the cooling system. x ( p. 141)
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. 56)
Fuse 1, 2 or 4 blown – Change the fuses of individual power consumers.
( p. 122)
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. 145)
Engine oil too thin (low viscosity) – Change the engine oil and filter, clean the oil
screens. x ( p. 146)
Headlight and parking light not func-
tioning
Fuse 7 blown – Change the fuses of individual power consumers.
( p. 122)
Turn signal, brake light and horn not
functioning
Fuse 6 blown – Change the fuses of individual power consumers.
( p. 122)