Starter Bendix for 50cc (139QMB), GY6 50

Starter Bendix for CSC Scooters and 139QMB Engines

This starter bendix gear is made to swap out worn parts in a range of CSC scooters and bikes that use 139QMB engines. It helps your vehicle start reliably. It works with models including the go and go MAX, Bella Classic model, Nitro Sport, and Pug 50. You can also browse our GY6 50cc scooter parts to keep your scooter running well.

Signs Your Starter Bendix Needs Replacing

A worn or damaged starter bendix often causes starting problems. Grinding sounds or a scooter that is slow or hard to start are signs it may need replacing. Checking it regularly can help you avoid sudden breakdowns and keep your riding trouble-free.

Installation Fit

This starter bendix is designed to work easily with your scooter's current setup. Its gear teeth mesh correctly with the surrounding components for dependable operation. Its dimensions match the original equipment specifications, so installation is simple.

Specifications

• Number of Teeth (Large Gear): 14
• Number of Teeth (Small Gear): 65
• Outer Diameter (Small Gear): 40mm
• Shaft Length: 70.25mm
• Outer Diameter (Shaft): 8mm
• Fits: Chicago Scooter Company go, go MAX, Pug 50 and Bella Classic/Nitro Sport 50 (139QMB-type engines)

Compatibility

Compatible with:

• GY6 50cc (139QMB)
• CSC Go Max
• CSC Pug 50
• CSC Go
• CSC Bella Classic 50
• CSC Nitro Sport 50
• Other 139QMB-based 50cc / 80cc engines (engine codes 139QMA, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD, other QMA and QMB models)

How to choose: Make sure your engine code contains "QM" or "FM" and that your engine is a 139QMB-based 50cc or 80cc unit.

Placement: part #4 on the starter & oil pump diagram for the GY6 50cc (139QMB), CSC Go; part #4 on the starter oil pump diagram for the CSC Go Max; part #4 on the starter and oil pump diagram for the CSC Pug 50.

Browse related parts: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Starters & Relays · Scooter Parts