24 IGNITION SYSTEM 202
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.
– Shift gear to neutral.
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– 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
A
from ground.
Guideline
Distance
A
5 mm (0.2 in)
– 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:
– 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.
Info
The CDI controller cannot be tested using simple methods but only
using an ignition test bench.
– Ignition coil - check the primary winding. ( p. 202)
– Ignition coil - check the secondary winding. ( p. 203)
– Check the ignition pulse generator. ( p. 205)
– Alternator - check the charging coil of the ignition. ( p. 204)
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– 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:
– Check the spark plug connector. ( p. 203)
– Change the spark plug.
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.
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