39/IGNITION SYSTEM
Checking the spark plug connector
26.5
Checking the CDI controller
26.6
Info
Never check the CDI controller with a conventional measuring instrument. This may result in the destruction of highly sensitive
electronic components.
Checking the ignition pulse generator
26.7
–
Measure the dismantled spark plug connector with a multimeter.
Spark plug connector
Resistance at: 20 °C (68 °F)
»
If the value displayed does not meet specifications:
–
Change the spark plug connector.
301473-10
–
Check the cables and plug-in connections of the CDI controller. A functional check
of the CDI controller is only possible on an ignition test bench.
301570-10
Condition
All plug contacts must be free of corrosion and the plug-in connectors must be firmly
seated.
The battery must be charged.
–
Remove the fuel tank. (
–
Disconnect the electrical plug-in connector connecting the ignition pulse generator
to the CDI controller.
–
Measure the resistance of the ignition pulse generator using a multimeter.
Ignition pulse generator - resistance
Red - green at: 20 °C (68 °F)
Red - ground at: 20 °C (68 °F)
»
If the measured value differs from the set value:
–
Change the ignition pulse generator.
301577-10
–
Connect the special tool to the multimeter.
Peak voltage adapter (58429042000) (
Info
When using the peak voltage adapter, the measurement range of the multi-
meter should be set to DCV.
–
Connect the red measuring lead of the special tool to the green wire. Connect the
black measuring lead to the red wire.
–
Press the electric starter button.
Ignition pulse generator - output voltage - connector disconnected
Red - green at: 20 °C (68 °F)
»
If the displayed value does not meet specifications:
–
Change the ignition pulse generator.
301571-10
3.75... 6.25 kΩ
p. 64)
80... 120 Ω
∞
p. 228)
1.5... 3 V
189