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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Feedback Carburetor Air/Fuel Control

The feedback carburetor air/fuel mixture is controlled by the ECU. The ECU monitors the throttle position, engine speed, coolant temperature, intake air temperature and exhaust oxygen concentration to provide the correct fuel flow required to obtain the ideal air/fuel mixture for all engine operating modes. The fuel flow is modified for special engine operating conditions such as cold or hot starts, acceleration and deceleration.