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 Plug Inspection




SPARK PLUG INSPECTION
Check the following and replace the spark plugs as necessary.
- Damaged insulation.
- Worn electrodes.
- Carbon deposits.
- Damaged gasket.

If cleaning is necessary, use a plug cleaner or a wire brush. Wipe upper insulator.

Gap: 1.0-1.1 mm (0.04-0.043 in.)