2x Vacuum Fuel TAP 3 port For Direct Bikes Yiying Lexmoto GY6 139QMA 139QMB 50ccFeatures: Vacuum controlled fuel tap for 50cc Chinese scooters with plastic tank (eg newer types REX RS and Peugeot V Click) and most China 4 stroke scooters GY6 with 125cc 180cc displacement. Often a malfunction of this component leads to starting difficulties and engine misfires while riding. The diaphragm of the fuel cock hangs and does not release the fuel or only to an insufficient extent. Only complete replacement will help to remedy the