Ignition System; Checking The Ignition System; Ignition Coil - Checking The Primary Winding - KTM 250 EXC EU Repair Manual

24

IGNITION SYSTEM

24.1

Checking the ignition system

Warning
Risk of injury The ignition system is under high voltage.
–
To avoid the danger of an electric shock, do not touch metal parts and the ends of the connection cable during and imme-
diately after measuring.
24.2

Ignition coil - checking the primary winding

Warning
Risk of injury The ignition system is under high voltage.
–
To avoid the danger of an electric shock, do not touch metal parts and the ends of the connection cable during and imme-
diately after measuring.
–
Shift gear to neutral.
–
Pull off the spark plug connector and remove the spark plug connector from the
ignition wire.
–
Remove the spark plug.
–
Hold the free end of the ignition wire at a distance
Guideline
Distance
–
Press the kick starter forcefully through its full range.
Info
201484-10
Do not open the throttle.
–
Check the ignition spark.
» If no ignition spark is visible:
–
Check the emergency OFF switch.
–
Check the wiring harness to the emergency OFF switch.
–
Check the kill switch.
–
Check the ground connection of the CDI controller and ignition coil.
–
Check the cable from the CDI controller to the ignition coil.
–
Ignition coil - check the primary winding. (
–
Ignition coil - check the secondary winding. (
–
Check the ignition pulse generator. (
–
Alternator - check the charging coil of the ignition. (
–
Fit the spark plug connector on the ignition wire again. Insert the spark plug into
the spark plug connector. Hold the spark plug to ground.
–
Press the kick starter forcefully through its full range.
Info
Do not open the throttle.
–
Check the ignition spark.
» If no ignition spark is visible:
201483-10 –
Check the spark plug connector. (
–
Change the spark plug.
A
Info
The CDI controller cannot be tested using simple methods but only
using an ignition test bench.
from ground.
A
5 mm (0.2 in)
p. 202)
p. 203)
p. 205)
p. 204)
p. 203)
202