M12 Washer 24mm OD for CSC Go., GY6 50cc (139QMB) Scooters

M12 Washer for CSC Scooters and 139QMB Engines

This M12 washer plays a key role in fastening the variator assembly to the crankshaft on a range of CSC scooters. It is made to be used with M12 nuts, so it is required for a correct build. Included among the GY6 50cc scooter parts, it helps keep your scooter running evenly and dependably. It suits several models, among them the go, go MAX, Pug 50, Nitro Sport 50, and Bella Classic 50.

Build and Purpose

This washer is sized precisely, with a 12.5mm inner diameter and a 24mm outer diameter, so it sits properly in its intended spot. Its 2mm thickness gives the support needed to keep the variator assembly intact. Its job is to hold the assembly firmly against the crankshaft while the scooter is in use.

Signs It Needs Replacing

If you see wear or damage while checking your scooter, swap out the M12 washer. A degraded washer may cause the assembly to sit incorrectly and lead to performance problems. Checking this part on a regular basis can help you avoid larger issues with the variator assembly.

Specifications

• Inner Diameter: 12.5mm
• Outer Diameter: 24mm
• Thickness: 2mm
• Fits: CSC go, CSC go MAX, CSC Pug 50 and 139QMB-based 50cc engines (GY6 50cc 139QMB)

Compatibility

Compatible with:

• CSC go (139QMB transmission and flywheel cover)
• CSC go MAX (transmission and flywheel cover)
• CSC Pug 50 (transmission and flywheel and cover)
• GY6 50cc (139QMB) engine, codes 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD and other QMA/QMB models

Location: part #5 on the transmission diagram for the GY6 50cc (139QMB), CSC Go; part #13 on the flywheel & cover diagram for the GY6 50cc (139QMB), CSC Go; part #5 on the transmission diagram for the CSC Go Max.

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