Fast Idle Cam Index
NOTE:
Fast idle cam index must be checked after any choke pulldown adjustment.
- With thermostatic housing in rich position (step 2 ) in Choke Valve Pulldown adjustment procedure), open throttle to set fast idle cam. Apply external vacuum source to pulldown diaphragm. Open throttle and watch fast idle cam. Fast idle cam should drop to kickdown step and fast idle screw should be opposite cam "V" notch.
- To adjust, turn fast idle cam lever adjustment screw. See Fig 1. Reconnect vacuum hose and perform AUTOMATIC CHOKE ADJUSTMENT to reset thermostatic housing to specification.