Glixal ATMT1-079 GY6 49cc 50cc Scooter Carburetor Intake Manifold Inlet Pipe for 139QMB 139QMA Engine Moped ATV Go Kart (Single Vaccuum Port) Single Vaccuum Port Intake Manifold Pipe GY6 50cc-100cc 139QMB Engine Mount Side Inner Diameter: 17mm Bolt Hole Spacing: 45mm Carburetor Mount Side Inner Diameter: 26mm Includes: Intake Manifold and Clamp