KTM Freeride 250 R EU Owner's Manual page 97

21 TROUBLESHOOTING
Faults
Engine overheats
White smoke development (steam in
the exhaust)
Gear oil emerges from the vent hose
Water in the gear oil
Possible cause
Too little coolant in cooling system
Too little air stream
Radiator fins very dirty
Foam formation in cooling system
Damaged cylinder head or cylinder
head gasket
Bent radiator hose
Incorrect ignition point due to loose
stator
Defect in radiator fan system
Damaged cylinder head or cylinder
head gasket
Too much gear oil added
Damaged shaft seal ring or water
pump
Action
–
Check the cooling system for leaks.
–
Check the coolant level. (
–
Switch off the engine when standing.
–
Clean the radiator fins.
–
Drain the coolant. (
–
Refill the coolant. (
–
Check the cylinder head and cylinder head gas-
ket.
–
Change the radiator hose.
–
Set the ignition.
–
Check fuse 2.
–
Check the radiator fan.
–
Check the thermoswitch.
–
Check the cylinder head and cylinder head gas-
ket.
–
Check the gear oil level. (
–
Check the shaft seal ring and water pump.
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p. 81)
p. 81)
p. 82)
p. 88)