39/1Gnition System; Checking The Ignition System - KTM 400 EXC AUS 2011 Repair Manual

3911GNITION SYSTEM
laa
Cbeckinllhe ill:!ition
~m
Warning
Risk 01 iniury
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.
Condition
The battery must be charged or the kickstarter must be used.
The main fuse in the starter relay must be working.
- Shift transmission to neutral.
(EXC USA)
- Turn the key in the ignition lock to the position
O.
- Turn the emergency OFF switch to the position
O.
(EXC AUS)
- Turn the emergency OFF switch to the position
O.
- Pull off the spark plug connector and remove the spark plug connector from the
ignition wire.
- Remove the spark plug using the special tool.
I
Spark plug wrench (75029172000) ( ... p. 259)
- Hold the free end of the ignition wire at a distance of dimension. from ground.
Guideline
I
Distance.
I
5
mm
<0.2
in)
- Press the electric starter button or press the kickstarter robustly through its full
range.
• Info
I
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 COl controller and the ignition coil.
- Check the cable from the COl controller to the ignition coil.
• Inlo
I
The COl controller cannot be checked with simple tools. but only on
an ignition test bench.
- Ignition coil - check the primary winding. ( ... p. 189)
- Ignition coil - check the secondary winding. ( ... p. 189)
- Check the ignition pulse generator. ( ... p. 191)
- Alternator - check the charging coil of the ignition. ( ... p. 190)
- Check the spark plug connector. ( ... p. 190)
- Change the spark plug.
- Fit the spark plug connector back onto the ignition cable. Insert the spark plug into
the spark plug connector. Hold the spark plug to ground.
- Press the electric starter button or press the kickstarter robustly through its full
range.
• Info
I
Do not open the throttle.
- Check the ignition spark.
• If no ignition spark is visible:
3911GNITION SYSTEM
laa
Cbeckinllhe ill:!ition
~m
Warning
Risk 01 iniury
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.
Condition
The battery must be charged or the kickstarter must be used.
The main fuse in the starter relay must be working.
- Shift transmission to neutral.
(EXC USA)
- Turn the key in the ignition lock to the position
O.
- Turn the emergency OFF switch to the position
O.
(EXC AUS)
- Turn the emergency OFF switch to the position
O.
- Pull off the spark plug connector and remove the spark plug connector from the
ignition wire.
- Remove the spark plug using the special tool.
I
Spark plug wrench (75029172000) ( ... p. 259)
- Hold the free end of the ignition wire at a distance of dimension. from ground.
Guideline
I
Distance.
I
5
mm
<0.2
in)
- Press the electric starter button or press the kickstarter robustly through its full
range.
• Info
I
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 COl controller and the ignition coil.
- Check the cable from the COl controller to the ignition coil.
• Inlo
I
The COl controller cannot be checked with simple tools. but only on
an ignition test bench.
- Ignition coil - check the primary winding. ( ... p. 189)
- Ignition coil - check the secondary winding. ( ... p. 189)
- Check the ignition pulse generator. ( ... p. 191)
- Alternator - check the charging coil of the ignition. ( ... p. 190)
- Check the spark plug connector. ( ... p. 190)
- Change the spark plug.
- Fit the spark plug connector back onto the ignition cable. Insert the spark plug into
the spark plug connector. Hold the spark plug to ground.
- Press the electric starter button or press the kickstarter robustly through its full
range.
• Info
I
Do not open the throttle.
- Check the ignition spark.
• If no ignition spark is visible: