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Home >> GMC >> 1981 >> Suburban K2500, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> ROCHESTER Models 2SE & E2SE 2-Barrel >> Adjustment >> Secondary Lock Out

Secondary Lock Out

  1. Hold choke valve wide open by pushing out on choke intermediate lever. See Fig 1.
    Fig 1: Adjusting Secondary Throttle Lockout
    G09337060Courtesy of GENERAL MOTORS COMPANY
  2. Open throttle valves until end of secondary actuating lever is opposite toe of lockout lever.
  3. Measure specified clearance between end of actuating lever and toe of lockout lever. Measurement can be checked using a drill or pin gauge of specified size.
  4. To adjust, bend lockout lever tang contacting fast idle cam.
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