KTM 450 XC, Owner'S Manual

Page: 176 / 208

TROUBLESHOOTING
174
Faults Possible cause Action
Engine turns but does not start. Socket connector of CDI control device,
pulse generator or ignition coil oxidized
–
Clean socket connector and treat it with
contact spray.
Water in carburetor or jets blocked
–
Clean carburetor.
Idle speed is set too high
–
Carburetor - adjust the idle speed. x
( p. 159)
Emergency OFF switch with rip cord faulty
–
Check wiring harness. (visual check)
–
Check electrical system.
Throttle lever activated
–
Do not activate the throttle lever.
–
See instructions on starting.
Switch for throttle lever faulty
–
Check wiring harness. (visual check)
–
Check electrical system.
Throttle valve sensor
TPS
incorrectly set or
faulty
–
Have the throttle valve sensor
TPS
checked or adjusted.
The engine cannot be cranked (electric
starter). Operating error
–
Follow the instructions on starting the
engine. (
p. 46)
Battery discharged
–
Recharge the battery. x ( p. 128)
–
Check the cause of discharging.
Main fuse burned out
–
Change the main fuse. ( p. 130)
–
Check electrical system.
Low external temperature
–
Recharge the battery. Establish the rea-
son for discharging or have it checked in
a KTM workshop.
Engine does not speed up. Carburetor running over because float nee-
dle dirty or worn
–
Have carburetor checked.
Loose carburetor jets
–
Have carburetor checked.