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Accelerator Pump Adjustment

  1. Remove air cleaner. Detach actuating shaft connecting links from bellcrank shaft. Connect an auxiliary electric fuel pump in place of mechanical pump to provide an adequate fuel supply.
  2. Mount electric fuel pump on blower housing to ensure proper ground. Remove float bow I-to-mechanical fuel pump hose at fuel pump and attach to outlet fitting of electric fuel pump.
  3. Disconnect mechanical fuel pump-to-carburetor fuel hose at fuel pump and attach to outlet fitting of other electric fuel pump. Connect positive wire of fuel pump to ignition side of coil.
  4. Turn on ignition and check operation of both fuel pumps. Hold a small graduated container at injection nozzle of carburetor. Move throttle linkage twice from stop to stop. Check each carburetor. Proper quantity for summer is 0.40 - 0.50 cc, for winter it is 0.55 - 0.65 cc. Adjust by turning adjusting nuts on accelerator pump rod.
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