Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Spark Test

1. Disconnect the ignition coil lead from the distributor.




2. Hold it with insulated pliers approx. 5-10 mm (0.20-0.39 in) from a ground.
3. Crank the engine and verify that a strong blue spark is visible.




4. If there is no spark, check for voltage at the positive (+) terminal of the ignition coil with the ignition switch at ON position.

Voltage: Battery positive voltage

5. If there is no voltage, check the main fuse, ignition switch, and wiring harness.