Air Cut-Off Valve Set - Each

The Air Cut-Off Valve Set helps prevent "afterburn" caused by a lean fuel mixture when the throttle is closed. It achieves this by temporarily closing the slow-jet air passage, creating a richer mixture. Each kit includes all necessary components for a complete rebuild of one carburetor, including a diaphragm, spring, and O-ring. It is designed to replace specific OEM parts, ensuring compatibility with various models.