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Anti-AFTERBURN Valve

  1. Disconnect anti-afterburn valve-to-air cleaner hose at anti-afterburn valve. Start engine and run at idle. Place finger over hose (intake port). Engine speed should not change. Increase engine speed and quickly release accelerator.
  2. Suction should be felt at air intake port. If no suction is present or suction lasts for more than 3 seconds, replace anti-afterburn valve.
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