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Table of Contents
I
F THE IGNITION SYSTE FAILS (NO SPARK OR INTERMIT-
TENT SPARK)
TENT SPARK)
P
ROCEDURES
Check:
1. Spark plug.
2. Gap between electrodes
3. Resistance of the connector
4. Ignition coil.
5. Main switch.
6. Resistance of the impulse coil.
7. Resistance of the field coil.
8. Ignition system connections.
N.B.
- REMOVE THE FOLLOWING PARTS BEFORE DIAGNOSIS: 1)
FAIRING AND SEATS
1. Spark plug
- Check the spark plug condition.
- Check the type of spark plug.
- Check the gap between the electrodes.
See "SPARK PLUG INSPECTION" in CHAPTER 3.
Gap between electrodes:
0.7 ÷ 0.8 mm
2. Gap between electrodes
- Disconnect the spark plug connector.
- Connect the spark tester (1) as in the figure (2) Spark plug.
- Turn the main switch to "ON".
- Check the gap between the electrodes (a).
- Start the engine and increase the gap until the spark
begins to fail.
Minimum electrode gap:
6 mm
136
C
ONFORMS TO SPECIFICATIONS
O
UTSIDE THAT SPECIFIEDOUTSIDE
THAT SPECIFIED
Standard spark plug
NGK BR8ES
O
UTSIDE THAT SPECIFIED
Renew the spark plug.
C
ONFORMS TO SPECIFICATIONS
The ignition system is normal.

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   Also See for Derbi GPR 125 Racing

This manual is also suitable for:

Gpr 125 racing

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