Blue Line M16x1.5 Vacuum Fuel Petcock - GY6 / 139QMB

This Blue Line M16x1.5 vacuum fuel petcock restores automatic fuel delivery on compatible GY6 and 139QMB-powered scooters. Engine vacuum opens the valve while the engine runs; when vacuum stops, the valve closes to shut off fuel flow at rest. Its tank-mounted design uses separate fuel and vacuum hose connections, giving you a straightforward replacement when your original automatic valve needs attention.

Key Features

• Automatic vacuum operation: Engine vacuum controls fuel flow without a manual ON/OFF/RES lever.
• M16x1.5 tank fitting: Threaded connection for tanks using this exact diameter and pitch.
• Two-port design: Separate hose connections for fuel delivery and the engine's vacuum supply.
• Inlet filter included: Supplied with a filter tube and sealing ring for the tank-side connection.
• Broad replacement application: Suits matching 50–150cc GY6 and 139QMB scooter fuel systems.

Technical Specifications

• Brand: Blue Line
• Part number: 1300-1160
• Part type: Vacuum-operated fuel petcock
• Tank thread: M16x1.5, 16mm nominal diameter with 1.5mm pitch
• Hose connections: Two, fuel and vacuum
• Operation: Automatic, engine-vacuum controlled
• Mounting: Directly to a matching threaded fuel-tank fitting
• Included: One petcock, inlet filter tube and sealing ring

Compatibility

For compatible GY6 and 139QMB-powered 50–150cc scooters with an M16x1.5 tank fitting and matching two-port vacuum fuel system. Applications include matching models from Peace Sports, Tao Tao, Icebear, Jonway, Velocity, ZNEN, Wolf, BMS, Bintelli, Baccio, Fly Scooter, Schwinn, SSR Motorsports, SunL and Puma Cycles. Brand or engine family alone does not establish fitment.

Check thread diameter and pitch before ordering. Fuel-tank fittings come in several sizes, including M14x1.00, M16x1.25 and M16x1.5. This valve fits M16x1.5 only; the other sizes are not interchangeable. Match the hose connections, valve layout and filter clearance to your original part before installation.

• Automatic engine-vacuum-operated fuel petcock
• Two hose ports: fuel and vacuum
• M16x1.5 tank thread; verify diameter and pitch
• For matching GY6 and 139QMB 50–150cc scooter fuel systems
• Inlet filter tube and sealing ring included

Brand: Blue Line; Part number: 1300-1160; Type: Vacuum-operated fuel petcock; Tank thread: M16x1.5; Nominal thread diameter: 16mm; Thread pitch: 1.5mm; Hose ports: Two, fuel and vacuum; Mounting: Matching threaded fuel-tank fitting; Included: One petcock, inlet filter tube and sealing ring

Compatible GY6 and 139QMB 50–150cc scooters with M16x1.5 fuel-tank fitting and matching two-port vacuum system; matching applications from Peace Sports, Tao Tao, Icebear, Jonway, Velocity, ZNEN, Wolf, BMS, Bintelli, Baccio, Fly Scooter, Schwinn, SSR Motorsports, SunL and Puma Cycles; verify thread diameter, pitch, connections and clearance; not interchangeable with M14x1.00 or M16x1.25