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Coasting Richer Valve

  1. Start engine and run at idle. Disconnect coasting richer valve electrical connector from carburetor. Connect valve electrical connector to battery. See Figure. If engine speed immediately rises to 950-1200 RPM, valve is operating correctly.
  2. Connect a test light to coasting richer valve electrical lead. Raise rear of vehicle and position on safety stands. Start engine and raise vehicle speed to 30 MPH. Release accelerator pedal. The test light should come on and remain lit until vehicle speed falls below 17-23 MPH.
  3. If coasting richer circuit is operating properly, no further tests are necessary. If circuit does not operate, test the following components:
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