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 logical successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la
Spark Plug: Description and Operation
Spark Plug The spark plug has a platinum tipped electrode. The thread diameter is
14 mm (0.551 in) and the gap is controlled to a value between
1.0 and 1.1 mm (0.039 and 0.043 in).