Fast Idle Deceleration System: Adjusting: Federal
Using a hand vacuum pump, apply at least 4.5 in. (110 mm) Hg vacuum to throttle plate opener. Adjust screw on top of diaphragm to give idle speed of 1800-2000 RPM.
Using a hand vacuum pump, apply at least 4.5 in. (110 mm) Hg vacuum to throttle plate opener. Adjust screw on top of diaphragm to give idle speed of 1800-2000 RPM.