FixVault

Choke Unloader

NOTE: This adjustment is performed using the choke valve angle gauge, see procedure at beginning of ADJUSTMENTS .
Fig 1: Adjusting Choke Unloader
G09337059Courtesy of GENERAL MOTORS COMPANY
  1. Automatic choke should be set to specified setting. Do not adjust setting unless carburetor is to be overhauled or unless choke coil lever adjustment is necessary. Hold primary throttle valve wide open. See Fig 1.
  2. If engine is warm, close choke valve by pushing in on intermediate choke lever. Hold in position with a rubber band.
  3. Place vacuum break lever against rear tang on choke lever. To adjust, bend tang on throttle lever until bubble in angle gauge is centered.