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
Spark Plug: Testing and Inspection
NOTE: Before cleaning, inspect the
spark plug insulators and electrodes for indications of oil fouling, rich mixture, or improper heat range. Refer to the Spark Plug Inspection Chart.
- Clean the
spark plugs with a wire brush or sandblast cleaner, if available.
- Check the electrode gaps. If necessary, adjust the gap clearance to
1.0-1.1mm (0.039-0.043 in).
