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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Inspection

SPARK PLUG

Inspection

INSPECTION AFTER REMOVAL

Use standard type spark plug for normal condition.

Spark plug (standard): Spark Plug Gap.

CAUTION:
- Never drop or shock spark plug.

- Never use wire brush for cleaning.
- If plug tip is covered with carbon, spark plug cleaner may be used.

- Checking and adjusting plug gap is not required between change intervals.