50 70 90 110cc ATV Pit Bike Complete Wiring Loom CDI Ignition Kit
Complete aftermarket electrical replacement kit for selected Chinese four-stroke ATV, quad and pit-bike engines. The stock set combines the main wiring harness with the ignition, charging and electric-start components needed to replace a damaged or heavily modified electrical system.
Kit Contents
- Main wiring loom / harness with multi-pin and bullet connectors
- Regulator / rectifier for charging-voltage control
- Magneto stator / ignition-coil plate
- CDI ignition unit
- HT ignition coil with high-tension lead / plug cap
- Spark plug
- Starter solenoid / starter relay
- Ignition / key switch
- Handlebar multifunction / engine switch
Primary Application
- Supplier-listed engine sizes: 50cc, 70cc, 90cc and 110cc
- Chinese-style 4-stroke electric-start ATV / quad / pit-bike applications
- 12V-style small-engine electrical systems where the connectors, CDI type, stator and switches match the supplied kit
Fitment Guide
- 50cc / 70cc / 90cc / 110cc Chinese ATV and quad – supplier-listed primary application.
- Pit bikes / dirt bikes using a matching Chinese four-stroke electric-start electrical system.
- Comparable complete kits are also sold for go-kart/buggy applications, but this listing remains focused on the ATV / pit-bike applications stated by the stock supplier.
Fitment confidence: Medium/High for the supplier-listed capacity range when the connectors and stator pattern match.
Important compatibility warning: Engine capacity alone does not confirm fitment. Match the stator, CDI plug, regulator, starter relay, ignition switch and handlebar-switch connectors.
Electrical Compatibility Checks
- Compare the CDI connector shape and pin count with your original before ordering. Many similar kits use an AC-CDI arrangement, but Chinese wiring systems are not fully standardised.
- Compare the stator/magneto plate, pickup position, wire count and connectors with your existing engine.
- Check the regulator/rectifier plug, starter-solenoid terminals, ignition-switch plug and handlebar-switch connectors.
- Confirm the motorcycle/ATV is an electric-start four-stroke application. Do not assume a kick-start-only harness is interchangeable.
- Not intended as a universal GY6 scooter loom. GY6 engines and many 200–250cc ATV engines can use different CDI, stator and harness arrangements.
OE / Manufacturer Reference Information
There is no single Honda-style OE number for this universal Chinese electrical kit. Vehicle brands often use their own harness numbers, and connector layouts can change without the engine capacity changing. The references below are therefore comparison references rather than guaranteed direct replacements.
- PetrolScooter 36974 – aftermarket 50–125cc quad wiring-loom reference; harness-pattern comparison only.
- TDRMOTO TD353 – aftermarket complete 50/70/90/110/125cc electrical-kit reference; comparison only.
- Coolster WIRE-17 / DQL-EA003 – official complete harness reference for ATV-3050B.
- Coolster WIRE-28 / DQL-EA011 – official complete harness reference for ATV-3050C.
- Coolster WIRE-26 / WIRE-27 / DQL-EA004 – official harness family for selected 3050D / 3125B models.
Manufacturer MPN for this stock item: not confirmed. The product is exported as Unbranded, so the Google Shopping MPN field is intentionally left blank. Seller SKU 01662-EIP is an internal stock number.
Before Installation
- Lay the new harness beside the old harness and compare every plug before connecting the battery.
- Verify earth/ground points are clean and secure.
- Do not connect wires by colour alone if the plug layout differs; Chinese aftermarket colour codes can vary.
- Disconnect the battery while installing the loom and check for trapped or exposed wiring before powering the system.
- If the original wiring has been modified, use a multimeter and the correct wiring diagram for the vehicle/engine.
Installation Note
Incorrect wiring can damage the CDI, regulator, stator or wiring loom and can create a short-circuit/fire risk. Professional installation is recommended if you are not confident identifying AC/DC ignition systems, charging circuits and starter wiring.
Delivery & Returns
- Free UK delivery with an estimated 2–3 working-day service
- 30-day returns, subject to the item being returned in its original condition