Operation CHARM: Car repair manuals for everyone.
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)

Or, hide this message: temporarily or permanently

Idle Speed: Adjustments

Idle Speed Specifications:







1. Connect tachometer.
2. Start engine and run until coolant reaches normal operating temperature.
3. Verify ignition timing is properly set.
4. Set idle speed by adjusting screw on throttle housing. Do not use the throttle stop adjusting screw for the throttle plate to adjust idle speed.