M1A Adjusting the Idling Speed (w/o Catalytic Converter)
M1A Adjusting the idling speed (not cars with catalytic converter)To adjust the idling speed, turn the adjusting screw on the throttle body by-pass passage. Adjust the idling speed in conjunction with setting the CO content.
Idling speed: 850 ± 75 rpm.
Note: The engine must be at normal operating temperature.