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Home >> GMC >> 1982 >> Forward Control 4.8L Eng VIN T, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> ROCHESTER 1ME Single Barrel >> Adjustment >> Choke Unloader
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Choke Unloader

  1. Install choke coil in housing and index properly. If choke is warm, cool down to point where choke valve will fully close.
  2. Hold throttle valve wide open. Measure clearance between lower edge of choke valve and inside air horn wall with specified drill or pin gauge. To adjust, bend choke unloader tang to achieve specified clearance. See Fig 1.
    Fig 1: Adjusting Choke Unloader
    G09360522Courtesy of GENERAL MOTORS COMPANY

    Hold throttle valve wide open.