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:
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lemon-manuals.org.ua
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Pressure Regulator Control System
Purpose To prevent vapor-lock during hot restart and idle by momentarily increasing fuel injection pressure.
Operation This system cancels the vacuum applied to the pressure regulator and increases the
fuel pressure during hot engine start-up and for a period immediately following engine start-up. This improves hot starting as well as providing smooth idle.
