GY6 Electrical Rebuild Kit for 50cc–150cc Scooters & ATVs (AC CDI System)

Product Overview

This 4-piece ignition and charging system kit is designed for the world’s most common GY6 4-stroke engines, providing a complete solution for no-start, weak spark, charging failure, or intermittent electrical issues.

Instead of replacing components one by one, this kit renews the entire high-voltage ignition path and voltage regulation system, ensuring strong spark, stable charging, and dependable starting.

All components are manufactured to meet or exceed OEM standards, using high-grade copper windings and heat-resistant polymers to withstand the high-temperature environment of rear-mounted scooter engines.

Product Compatibility

Category	Details
Engine Platform	GY6 4-Stroke Engines
Engine Displacement	50cc / 80cc / 125cc / 150cc
Engine Codes	QMB139 (50cc) / QMJ157 (125cc–150cc)
Ignition System Type	AC CDI Only
Vehicle Types	Scooter / Moped / ATV / Quad / Go Kart / Pit Bike
Compatible Brands	TaoTao, Peace, Icebear, Roketa, Kymco, SYM, Wolf, and other GY6-based vehicles
Installation Type	Plug-and-Play (OEM-style connectors)
Not Compatible With	DC CDI systems, EFI models, non-GY6 engines

What’s Included in the Kit

Item	Component	Key Specifications	Function
1	AC CDI Box (6-Pin)	Connector: 4+2 Pin (Male)System: AC-fired ignition	Controls ignition timing and delivers stable spark across all RPM ranges
2	High-Performance Ignition Coil	High-voltage outputOEM-style plug	Converts low voltage into high-voltage spark for improved combustion and throttle response
3	Voltage Regulator Rectifier (4-Pin)	Connector: 4-Prong rectangular plug12V system	Stabilizes voltage output to protect battery and electrical components
4	Starter Solenoid Relay (12V)	Connector: 2-Wire / 2-Pin (Male)High-current capacity	Ensures reliable engine cranking and fast, consistent starts

Specifications

Item	Specification
Product Type	GY6 Electrical Rebuild Kit
Ignition Type	AC CDI System
Engine Type	GY6 4-Stroke
Displacement	50cc / 80cc / 125cc / 150cc
CDI Connector	6-Pin (4+2)
Regulator Connector	4-Pin
Solenoid Connector	2-Pin
Material	Copper windings + heat-resistant polymers
Installation	Plug-and-play (AC systems only)
Condition	Brand New

Why Choose the GOOFIT GY6 Electrical Kit?

Complete System Synchronization
Replacing the CDI and ignition coil together ensures a clean, high-voltage signal without losses caused by aging or high-resistance components.

All-Weather Reliability
Sealed, moisture-resistant construction makes this kit suitable for rainy conditions and dusty trail riding.

Standardized Fitment
Designed to match the plug styles and mounting dimensions used on over 95% of GY6 engines, eliminating wiring modifications.

Improved Cold Starts
Upgraded CDI components and high-conductivity copper in the solenoid allow faster cranking and instant ignition, even in cold weather.