KTM Freeride 250 R EU, Owner'S Manual

Page: 97 / 115

21 TROUBLESHOOTING
95
Faults Possible cause Action
Engine overheats Too little coolant in cooling system
–
Check the cooling system for leaks.
–
Check the coolant level. ( p. 81)
Too little air stream
–
Switch off the engine when standing.
Radiator fins very dirty
–
Clean the radiator fins.
Foam formation in cooling system
–
Drain the coolant. ( p. 81)
–
Refill the coolant. ( p. 82)
Damaged cylinder head or cylinder
head gasket
–
Check the cylinder head and cylinder head gas-
ket.
Bent radiator hose
–
Change the radiator hose.
Incorrect ignition point due to loose
stator
–
Set the ignition.
Defect in radiator fan system
–
Check fuse 2 .
–
Check the radiator fan.
–
Check the thermoswitch.
White smoke development (steam in
the exhaust) Damaged cylinder head or cylinder
head gasket
–
Check the cylinder head and cylinder head gas-
ket.
Gear oil emerges from 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.