Quadrajet Adjustments

E4MC & E4ME Adjustments

Float Level Adjustment

Rochester Quadrajet Float Level Adjustment

Pump Rod Adjustment

Rochester Quadrajet Pump Rod Adjustment

Fast Idle Setting

Rochester Quadrajet Fast Idle Adjustment
Your carburetor may not be like this.

Choke Rod Adjustment

Rochester Quadrajet Choke Rod Adjustment

Choke Coil Lever Adjustment

Fast Idle Cam Adjustment

Rochester Quadrajet Fast Idle Cam Adjustment
Rochester Quadrajet Parts

Vacuum Break Adjustment

Rochester Quadrajet Vacuum Break Adjustment

Unloader Adjustment

Rochester Quadrajet Unloader Adjustment

Automatic Choke Adjustment

Rochester Quadrajet Automatic Choke Adjustment

This adjustment screw is for the ‘adjustable part throttle’ and is factory set, leave it alone. If you already removed it, turn it in until seated, then turn out 4 turns. Turning the screw down (clockwise) creates a leaner part throttle mixture.

Updated on 06/29/2022

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