Vacuum Fuel Outlet Fit For GY6 50cc 125cc 150cc Scooter ATV Motorcycle Spare Parts vehicle fit for GY6 50cc 125cc 150cc Scooter ATV Core sealed vacuum control structure ; automatically adjust fuel delivery For engine vacuum changes Smooth internal flow passage ; stable fuel supply during acceleration idle cruising Dual port connection layout ; easy link with fuel carburetor vacuum pipeline Compact integrated design ; quick for fuel system overhaul molded interface size ; match GY6 pipeline mounting positions without