Scooterworks USA, LLC
Blue Line GY6 Kickstart Quadrant & Spindle Assembly
Description
Bring dependable kickstart engagement back to your scooter with this Blue Line kickstart spindle assembly for compatible GY6 engines. The 158 mm assembly combines the splined lever shaft, toothed quadrant and return spring to replace worn or damaged kickstart components and help your lever return smoothly after each stroke.
Key Features
- Restore kickstart operation: Replaces a spindle or quadrant with worn, stripped or chipped teeth.
- High-strength steel: Forged, heat-treated construction resists the repeated loads of manual starting.
- Splined lever connection: Provides the mounting interface for a compatible kickstart lever.
- Quadrant and return spring included: Combines the gear sector, spindle and coiled return spring in one replacement assembly.
- 158 mm overall length: Provides a key measurement for comparison with the original assembly.
Technical Specifications
- Brand: Blue Line
- Part number: 1100-1146
- Classification: Aftermarket replacement
- Part type: Kickstart spindle / quadrant assembly
- Overall length: 158 mm
- Material: High-strength steel
- Construction: Forged and heat-treated
- Components: Splined shaft, toothed quadrant and return spring
- Primary application: Compatible GY6 125/150cc four-stroke kickstart mechanisms
- Quantity: One assembly
- Country of origin: China
Compatibility
| Engine family / codes | Fitment requirement |
|---|---|
| GY6 125/150cc: 152QMI, 157QMJ, YN1P57QMJ, JJ157QMJ, 1P57QMJ and BN157QMJ | Requires matching shaft length, lever splines, quadrant profile and kickstart mechanism |
| 169cc / QMK applications: 161QMK, 1P61QMK and BN161QMK-A | Only where equipped with a matching kickstart mechanism; compare the original assembly |
| 1P52FMI, 154FMI and other QMI/QMJ/QMK variants | Requires the same spindle and quadrant configuration; engine code alone does not establish fit |
Compare the original assembly's overall length, splines, gear profile and return-spring arrangement before ordering. This part serves the mechanical kickstart drive, not the electric starter. Kickstart operation still depends on the engine's ignition and fuel systems.
For installation, follow the service manual's lubrication and spring-preload instructions, keep grease away from the belt and pulley faces, and check that the lever returns freely before use.
Looking for related components? Use our GY6 Exploded Diagrams to identify other parts for your engine.
Product Diagrams
Features
Specifications
Brand: Blue Line; Part number: 1100-1146; Classification: aftermarket replacement; Type: kickstart spindle / quadrant assembly; Overall length: 158 mm; Material: high-strength steel; Construction: forged and heat-treated; Components: splined shaft, toothed quadrant and return spring; Primary application: compatible GY6 125/150cc kickstart mechanisms; Quantity: 1 assembly; Country of origin: China
Model Fitments
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