Product Description
This High Performance Starter Motor from Scooterworks is intended for use with 4-stroke GY6 engines with a big bore kit or big stroker kit.
To get more torque and compression and compensate for the larger displacement for your kitted engine, we HIGHLY recommend you add this performance starter clutch.
Original Parts For Scooters SKU 155-4, SKU 169-282
Specifications:
- Bolt Hole Spacing: 78mm
- Shaft Length: 22.5mm
- Shaft Diameter: 11.5mm
- Diameter (near o-ring): 30mm
- Number of Splines: 9
- Includes motor, wiring harness and connector
- Overall dimensions: 6.5"L x 5.5"W x 4"H
- Product may vary from photos
Compatibility: 4-stroke GY6 engines with a big bore kit or big stroker kit
157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:
| 157QMJ | 161QMK | 152QMI | 1P61QMK |
| YN1P57QMJ | 1P52FMI | 154FMI | JJ157QMJ |
| 1P57QMJ | BN157QMJ | BN161QMK-A | Other QMJ, QMK, and QMI models |
Don't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle.
About Scooterworks: Since our beginning in 1989, Scooterworks has become a major supplier of parts and accessories for vintage and modern scooters. We have everything you need, from wear-and-tear items like tires and oil filters to aftermarket parts from brands like Malossi, NCY, Prima, YSS, Dr. Pulley, and more.
