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: Specifications





Spark Plug Type


NIPPONDENSO PKJ16CR8 (7), PKJ120CR8 (8)

Gap 0.7 - 0.8 mm (0.028 - 0.031 inches)


Note: (7) standard plug (8) denotes cold type plug