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 Timing: Testing and Inspection

Ignition Timing Inspection

Note:
^ The ignition timing cannot be adjusted.
^ The M-MDS is required to verify the ignition timing.

1. Verify the ignition timing (M-MDS: SPARKADV) using the PID/data monitor function of the M-MDS.
Ignition timing Approx. BTDC 10°
2. Verify that ignition timing advances when the engine speed increases gradually.
^ If there is malfunction, refer to "ENGINE SYMPTOM TROUBLESHOOTING".