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)
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Ignition System: Description and Operation
The Electronic Spark Advance provides electronically controlled spark advance and eliminates the need for mechanical and vacuum advance controls in the
distributor. The Spark Control Computer uses as many as five sensors to monitor the engine conditions so that it can fire the
spark plugs at the proper time.