Air Cut-Off Valve Set - Each

Air Cut-Off Valve Set This kit is an affordable alternative to expensive OEM assemblies. It helps prevent afterburn caused by a lean fuel mixture when the throttle is closed by temporarily shutting the slow-jet air passage, creating a richer mixture. The set includes all necessary components for a complete rebuild, including a diaphragm, spring, and O-ring. Designed for use on a single carburetor.