Anti-AFTERBURN Valve
- Disconnect air hose at air cleaner from anti-afterburn valve. Start engine and idle.
- Block off hose opening with finger. Engine RPM should NOT change. Cycle throttle to increase engine RPM and quickly release throttle.
- Suction should be felt at open end of anti-afterburn valve hose.
- If no suction is present, or excessive suction lasts for more than 3 seconds, replace valve.