GOOFIT Reverse Pressure Fuel Switch Adapter for GY6-50 Engine, Two-Piece Vacuum Diaphragm Valve, Modification Parts for Scooters/Off-Road Vehicles

Optimized for the GY6-50 platform: This product is specifically designed for scooters, ATVs, and small ATVs with the GY6-50 engine. The "reverse" mounting (the switch is typically located under the fuel tank, with the valve body facing upwards) fits perfectly with the vehicle's original structure and ensures a direct connection to the fuel line and vacuum port. Automatic vacuum start/stop: As a vacuum diaphragm switch, the intake vacuum generated during engine operation automatically opens the fuel supply valve; it closes automatically when the engine is shut off, preventing fuel leaks and increasing safety and ease of use. Excellent value with the twin pack: One set contains two reverse vacuum switches with identical specifications—one for immediate replacement and one as a spare. This set is particularly suitable for vehicle fleets, rental vehicles, or as an essential spare part for maintenance, offering both economy and convenience. It solves common problems: It directly replaces common difficulties such as starting problems in cold weather, insufficient fuel supply while driving, fuel leaks after the engine is switched off, or fuel entering the cylinder due to diaphragm aging, a vacuum hose leak, or a seal failure.