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Accelerator Pump

NOTE: If carburetor has a clip retaining pump rod in pump lever, no adjustment is required. If connection is "clipless", pump adjustment should not be changed from original factory setting. See Fig 1. Adjustment should only be made if specified setting is changed. Pump lever is manufactured from hardened steel, making it difficult to bend. Pump arm should not be removed to make adjustment unless absolutely necessary.
  1. Close throttle valves completely. Make sure fast idle speed screw is off fast idle cam. See Fig 1.
  2. Using a "T" scale, measure accelerator pump specified distance from cast surface of air horn to top of pump stem.
  3. To adjust, remove pump lever screw and washer. Remove pump lever by rotating lever and removing from pump rod. Secure lever in a vise and bend end of lever at small segment.
    Fig 1: Adjusting Accelerator Pump
    G09315721Courtesy of AMERICAN MOTORS/RENAULT CORP.
  4. Install pump lever, washer and retaining screw. Recheck pump adjustment, and when correct, tighten retaining screw. Open and close throttle and check for free linkage movement and pump lever alignment.