Adjusting the Idle Speed and Mix

The following technique is used on a 30 PICT-2 carb.


1--Warm your car up by giving it a spin round the block. Get her up to normal operating temperature


2--Ensure idling speed screw is not resting on steps of fast idle cam.


3--Slowly twist idle speed adjusting screw to 550 rpm


4--Slowly turn idle mix control in clock wise direction, wait till engine slows down, then turn 1/4 to 1/3 from the fully closed position, wait for a change.


5--Slowly turn screw either way, to regulate the idling speed.


6--Normal initial mix can be set by turning the screw 1 1/4 to 1 1/2 turns from fully closed. Be sure not to over tighten.


7--With the idling mixture being over rich, the engine will be likely to stall when braking suddenly and you will notice an excessively high consumption of fuel in the range from 0 to 40 MPH (65 km/h).