Blue Line GY6 125cc-200cc 9-Spline Starter Motor

Blue Line GY6 125-200cc Starter Motor

Restore your scooter’s quick-start capability with the Blue Line OEM GY6 Starter Motor. We source from the OEM supply chains for the ubiquitous GY6 Chinese engine series. This motor provides the consistent cranking torque needed to fire up your engine in all weather conditions. Whether you are replacing a seized factory unit or upgrading a budget build, Blue Line delivers OEM-equivalent performance without the high dealership price tag.

Technical Performance Features

• 9-Spline Drive Shaft: Precision-machined 9-spline gear ensures perfect engagement with your starter clutch, preventing slipping and reducing wear on internal engine components.
• High-Torque Output: Optimized for 125cc, 150cc, and 169cc big-bore GY6 engines (157QMJ / 152QMI), providing enough power to overcome high-compression builds.
• Heavy-Duty Internal Windings: Built with high-grade copper wiring to resist heat buildup and electrical "flat spots," extending the service life of the motor.
• Plug-and-Play Wiring: Includes a factory-style wiring harness and connector for a seamless installation—no splicing or soldering required.

Comprehensive Fitment Guide

This starter is compatible with virtually all Chinese GY6 125-150cc scooters, ATVs, and Go-Karts using the following engine codes:

Technical Specifications

• Spline Count: 9
• Bolt Hole Spacing: 79mm
• Motor Diameter: 60mm
• Nose Diameter (at O-Ring): 30mm
• Overall Length: 120mm

Mechanic's Note:  This motor requires Two Mounting Bolts (SKU 1100-1132), which are sold separately.

Part Number: 1100-1131
Brand: Blue Line (Quality OEM Replacements)