Flange Bolt (M6x22) for CSC Go., GY6 50cc (139QMB) Scooters

M6 x 22 Flange Bolt for CSC Scooters and 50cc Engines

This flange bolt, measuring M6 x 22, holds the cam chain tensioner in place on a range of CSC scooters and 50cc bikes. It helps the engine run as it should. It is one of the typical GY6 50cc scooter parts that people reach for during service work and repairs. It works with several models, making it a simple replacement option for riders who need one.

Role and Why It Matters

The flange bolt keeps the cam chain tensioner steady. If the bolt wears down or gets damaged, the tensioner may not sit correctly, which can cause engine performance problems. Checking the bolt on a regular basis and swapping it out when needed keeps your scooter running well.

Signs It Needs Replacing

Look over the flange bolt during routine maintenance, and check it sooner if the engine starts making odd sounds. A stripped or corroded bolt should be replaced. Maintaining this part in good shape protects the surrounding engine components and supports dependable running.

Specifications

• Thread Size: M6x1.00
• Thread Length: 19mm
• Shaft Length: 22mm
• Overall Length: 27mm
• Fits: CSC Go, Go Max, Pug 50, Nitro Sport 50, Bella Classic 50 and 139QMB-based 50cc engines

Compatible Models

Works with:

• CSC Go
• CSC Go Max
• CSC Pug 50
• CSC Nitro Sport 50
• CSC Bella Classic 50
• GY6 50cc (139QMB) engines (139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD)
• Other QMA and QMB models

How to choose: Compare the engine code printed on your engine case with the list above. Any code that includes "QM" or "FM" is listed as compatible.

Where it goes: part #3 on the starter & oil pump diagram for the GY6 50cc (139QMB), CSC Go; part #5 on the flywheel & cover diagram for the GY6 50cc (139QMB), CSC Go; part #5 on the flywheel and cover diagram for the CSC Bella Classic 50.

Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Bolts, Screws & Hardware · Scooter Parts