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
CLEANING and INSPECTION Clean
spark plugs as necessary with a professional spark plug cleaner (follow manufacturer's instructions). Inspect the firing tip. Refer to Spark Plug Inspection Chart. Replace with the proper replacement spark plug as listed on the Vehicle Emission Control Information
(VECI) decal, if the spark plug is worn or damaged.