Flywheel for CSC Go., GY6 50cc (139QMB) Scooters
ITEM# TT-24682
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Description
Replacement Flywheel for CSC Go. and Compatible Scooters
This flywheel is built to take the place of the original unit in CSC Go. scooters, among them the Genuine Bella Classic 50, Nitro Sport 50, and Pug 50. It suits machines running the 139QMB engine. It is one of the GY6 50cc scooter parts a rider might swap out when looking to get more out of the scooter.
Build and Layout
The flywheel carries eight magnets. Its center bore is keyed, with a cut-out keyway that locks it in place during installation. The inner diameter measures 90mm and the outer diameter 110mm, so it lines up with the matching engines. The thread is M24x1.00, which gives a solid connection for proper engine running.
Signs It Needs Replacing
Trouble starting or ignition that comes and goes can point to a flywheel that needs attention. Swapping it out can bring back normal engine operation and help the scooter run better overall. Checking it on a regular basis helps keep the ride smooth.
Specifications
- Magnets: 8
- Inner Diameter: 90mm
- Outer Diameter: 110mm
- Thread Size: M24x1.00
- Includes Stator: No
- Fits: CSC go., Bella Classic 50, Go Max, Nitro Sport 50, Pug 50
Compatibility
Fits:
- GY6 50cc (139QMB)
- CSC go. (139QMB 50cc engine)
- CSC Bella Classic 50
- CSC Go Max
- CSC Nitro Sport 50
- CSC Pug 50
- 139QMB-based 50cc/80cc engines (139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD)
How to pick the right one: Compare the engine code stamped on your scooter with the codes listed above. Then check the 90mm inner diameter, 110mm outer diameter, M24x1.00 thread, and keyed bore against your original flywheel. Matching "QM" or "FM" in the code alone does not confirm a fit.
Installation reference: part #1 on the flywheel and cover diagram for the GY6 50cc (139QMB), CSC Go; part #1 on the flywheel and cover diagram for the CSC Bella Classic 50; part #1 on the flywheel cover diagram for the CSC Go Max.
Browse related parts: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Stators & Regulators · Scooter Parts
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