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 Timing Connector: Description and Operation
Ignition Timing Vacuum Switch:
Below vacuum setting, this switch,
Fig. 16, is open and signals the ignition module to retard spark timing. The switch is closed above the vacuum setting and the ignition module is in the non-retard spark timing mode. Calibration resistors inside the switch control the amount of retard.
