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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permanently
Distributor Spark Vacuum Retard Delay Valve (DS-VRDV)
This valve is used with a thermal switch that connects the chamber halves (ports 2 and 3) after engine warm-up. When the engine is cold, this valve delaysthe
distributor retard during quick throttle openings. When the engine is warm, the thermal vacuum switch allows the advance unit to respond directly to ported vacuum changes when the TVS bypasses the delay valve.