KTM RC 125, Owner'S Manual

Page: 173 / 211

21 TROUBLESHOOTING
171
Faults Possible cause Action
Engine does not crank when the elec-
tric starter button is pressed Operating error
–
Go through the steps of starting the engine.
( p. 61)
Battery discharged
–
Recharge the battery. ( p. 133)
Fuse 1 , 3 , 4 , or 7 is blown
–
Change the fuses of individual power consumers.
( p. 138)
No ground connection present
–
Check the ground connection.
Engine turns only if the clutch lever is
drawn The vehicle is in gear
–
Shift gear to neutral.
The vehicle is in gear and the side
stand is folded out
–
Shift gear to neutral.
Engine turns but does not start Operating error
–
Go through the steps of starting the engine.
( p. 61)
Fault in fuel injection system
–
Read out the fault memory using the KTM diag-
nostics tool.
Engine has too little power Air filter is very dirty
–
Change the air filter.
Fuel filter is very dirty
–
Check the fuel pressure.
Fault in fuel injection system
–
Read out the fault memory using the KTM diag-
nostics tool.
Engine overheats Too little coolant in cooling system
–
Check the cooling system for leakage.
–
Check the coolant level in the compensating
tank. (
p. 148)
Radiator fins very dirty
–
Clean the radiator fins.
Foam formation in cooling system
–
Drain the coolant. ( p. 153)
–
Fill/bleed the cooling system. ( p. 154)
Thermostat defective
–
Check the thermostat.
Fuse 5 blown
–
Change the fuses of individual power consumers.
( p. 138)