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!
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Ignition System: Description and Operation
PURPOSE / OPERATION Due to the various engine operating conditions, a spark control system is used to control the moment at which the
air/fuel mixture in the combustion chamber is ignited, thus greatly reducing exhaust emissions.