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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System Performance Check

System Performance Check:

Dwell Meter Readings/Feedback Cycling:

The System Performance Check is used to check the operation of the carburetor duty solenoid and main metering circuit utilizing a tachometer and to check the operation of the Closed Loop Emission Control System utilizing a dwell meter. This check is performed by following the diagnostic chart and referring to the numbered charts under DIAGNOSTIC CHARTS as needed.