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Throttle Controls: Dashpot

  1. Run engine at operating temperature. Ensure idle speed is 650-750 RPM. Turn off engine. Remove cap, filter and separator from end of dashpot. See Fig 1. Start engine. Increase engine speed to 4000 RPM. Ensure cooling fan is not running.
  2. Fully extend dashpot rod by using finger to cover hole inside area where separator was installed in dashpot. Release throttle. If engine speed is not 2500 RPM, turn dashpot adjusting screw as necessary. Installing separator, filter (coarse side up) and cap.
Fig 1: Identifying Dashpot Components
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