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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Ignition Cable: Service and Repair

Spark Plug Wiring:






When replacing spark plug cables (secondary wiring), route the cables correctly and through the proper retainers. Use care when unlocking retainers. Failure to route the cables properly can lead to radio ignition noise and cross-firing of the plugs, or shorting of the leads to ground. The silicone spark plug boots form a tight seal on the plug and the boot should be twisted 1/2 turn while removing.