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Angle Gauge Adjustment Tool

Manufacturer recommends that some carburetor adjustments be performed using a choke valve angle gauge (Kent-Moore tool no. J-26701). While preparations and actual adjustments may vary with each individual adjustment, the procedure for using the angle gauge to check the choke valve angle remains the same. Use the following procedure to perform adjustments requiring the use of the choke angle gauge.

  1. Rotate degree scale on angle gauge so that 0° mark is opposite pointer.
  2. With choke valve closed, place angle gauge magnet squarely on choke valve. Rotate leveling bubble on angle gauge until it is centered. Rotate degree scale until specified degree mark is opposite pointer. See Fig 1.
  3. Perform individual adjustment preparations as outlined in the following carburetor adjustments requiring angle gauge. If bubble is centered, adjustment is correct. If not, adjust carburetor as outlined.
    Fig 1: Choke Valve Angle Gauge
    G09360541Courtesy of GENERAL MOTORS COMPANY

    This gauge must be used to perform certain adjustments.