Operation CHARM: Car repair manuals for everyone.

Idle Speed Adjustment

1. Ensure ignition timing and valve lash are properly adjusted, all vacuum hoses and engine harness connectors are securely connected and all accessories are off.
2. Connect suitable tachometer to engine following manufacturer's instructions.
3. Start engine and run until it reaches normal operating temperature.
4. If idle speed is not within specifications, adjust by turning throttle stop screw in or out as needed.
5. When idle speed has been adjusted to specifications, check operation of idle-up compensator. Adjust as needed.