GY6 Kick Start Gear Shaft And Idle Gear Kit For 49cc 50cc 80cc Scooters And Mopeds 139QMB P139QMA 4 Stroke Engines Rebuild Replacement With Durable Steel Teeth And Easy Install Design For Reliable Starts And Smooth Acceleration
This starter rebuild kit fits GY6 49cc/50cc/80cc scooters and mopeds using the 139QMB or P139QMA 4-stroke engines. It includes a Kick Start Shaft Gear, Idle Gear, Spring, Bushing, Circlip, and two Gaskets for a complete replacement.
✅ Kick Start Shaft Gear: 7 teeth, 56mm length, 14mm spline diameter
✅ Idle Gear: 8 teeth, compatible with 139QMB/P139QMA 4-stroke units
✅ Material: CNC aluminum alloy for strength and durability
✅ Includes: 1x Kick Start Gear, 1x Idle Gear, 1x Spring, 1x Bushing, 1x Circlip, 2x Gaskets
✅ Notes: install complete set if the original idle gear has 7 splines; gear must sit at the bottom
💡 What is a kick start gear shaft kit used for in GY6 139QMB/P139QMA engines? A handy upgrade for quick starts and smooth acceleration.
- Kick Start Shaft Gear and Idle Gear replacement for 139QMB/P139QMA 4-stroke scooters
- CNC aluminum alloy gears for durability and long life
- Includes all required hardware for easy install