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TROUBLESHOOTING
Faults
Engine turns but does not start.
Possible cause
Spark plug connector or spark plug
defective
Socket connector of CDI control
device, pulse generator or ignition coil
oxidized
Action
Warning
Risk of injury The ignition system is
under high voltage.
–
Do not touch parts of the ignition sys-
tem. Have work on the ignition sys-
tem carried out in an authorized KTM
workshop.
–
Remove spark plug, connect ignition cable, hold
spark plug to ground (bare metal area on engine),
and try to start the engine.
Guideline
You should see a strong spark on the spark plug.
–
If there is no spark, change the spark plug.
–
If there is still no spark, remove the spark plug
cap from the ignition cable, hold it at the speci-
fied distance from the ground contact, and try to
start the engine.
Guideline
5 mm (0.2 in)
–
If you now have a spark, replace the spark plug
connector.
–
If there is no spark, have the ignition system
checked.
–
Clean socket connector and treat it with contact
spray.
167
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