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)

Or, hide this message: temporarily or permanently

Symptom Related Diagnostic Procedures

ENGINE CRANKS BUT DOES NOT START
Spark is insufficient or does not occur at all.
- Check ignition coil.
- Check distributor.
- Check power transistor.
- Check spark plugs.

Spark is good.
- Check ignition timing.

ENGINE IDLES ROUGHLY OR STALLS
- Check spark plugs.
- Check ignition timing.
- Check ignition coil.

POOR ACCELERATION
- Check ignition timing.

ENGINE OVERHEATS OR CONSUMES EXCESSIVE FUEL
- Check ignition timing.