GOOFIT
Complete Ignition Rebuild Kit for 50cc-125cc ATV & Go Kart
Complete Ignition Rebuild Kit for 50cc-125cc ATV & Go Kart
4.8 / 5.0
(5) 5 total reviews
Couldn't load pickup availability
Product Overview
A complete electrical ignition rebuild solution for 50cc–125cc 4-stroke electric start engines, designed to eliminate no-spark issues, wiring failures, and unreliable starting in Chinese ATVs and go-karts.
Product Compatibility
| Category | Details |
|---|---|
| Engine Type | 4-Stroke |
| Engine Size | 50cc / 70cc / 90cc / 110cc / 125cc |
| Start System | Electric Start Only |
| Engine Layout | Vertical Engine |
| Vehicle Types | ATV, Quad, Pit Bike, Dirt Bike, Go-Kart, Dune Buggy, 4-Wheeler |
| Common Brands | TaoTao, Coolster, Motowork, Sunl, Roketa, Kazuma, Chinese OEM brands |
| Not Compatible With | GY6 engines, horizontal engines |
What’s Included in the Kit
| Component | Description |
|---|---|
| Main Wiring Harness Loom | Full-length 1200mm harness for complete system replacement |
| 5-Pin AC CDI Unit | Stable ignition timing across low and high RPM |
| Starter Solenoid Relay | Heavy-duty 12V relay for reliable cranking |
| Handlebar Kill Switch | Emergency engine shut-off for safety |
| Ignition Key Switch | Keyed on/off control with 2 keys |
| Performance Spark Plug | Optimized for 50cc–125cc 4-stroke engines |
Specifications
| Item | Details |
|---|---|
| Wiring Harness Length | 1200mm / 47.24" |
| CDI Type | 5-Pin AC CDI |
| Electrical System | AC-fired ignition |
| Voltage | 12V |
| Installation | Plug-and-play replacement |
| Condition | Brand new aftermarket |
Key Features
- Complete ignition and wiring system rebuild in one kit
- Designed for 50cc–125cc vertical 4-stroke electric start engines
- Eliminates common no-spark and intermittent power issues
- Extended 1200mm harness allows clean, low-tension routing
- Factory-style connectors for easy installation
- Built to withstand vibration, heat, and off-road conditions
- Improves starting reliability and overall electrical stability
Share
Fitment FAQ
Will this part fit my specific model and year?
This cylinder piston kit is intended for 50cc-125cc ATV & Go Kart. Key physical/spec details from the product data include Engine Size: 50cc / 70cc / 90cc / 110cc / 125cc, Full-length 1200mm harness for complete system replacement, 5-Pin AC CDI Unit. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. If your original part has a stamped OEM or manufacturer number, match that number first before ordering. For this cylinder piston kit, also compare the bore diameter, piston-pin size, gasket pattern, stud spacing, engine code, stroke type, and cylinder height.
What models or situations does this part not fit?
Do not order this cylinder piston kit for machines outside the listed compatibility, or for units with different bore sizes, piston-pin diameters, stroke lengths, stud spacing, or gasket patterns. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the bore diameter, piston-pin size, gasket pattern, stud spacing, engine code, stroke type, and cylinder height. Recheck listed specs such as Engine Size: 50cc / 70cc / 90cc / 110cc / 125cc, Full-length 1200mm harness for complete system replacement, 5-Pin AC CDI Unit. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.
So the main harness is about 4 inches short and does not have the hook ups for the reverse and neutral indicators. However all the components are plug and play on my unit. The handle bar switch is different at the plug so you have to address that. I'll update later as to if it works etc.
Used it for Best Sport chinese quad
This harness was installed on a 125 Redcat and worked very well. It can be a bit confusing and took me a little while to figure out but was well worth it because it fired right up. If your having electrical problems this is the answer.
All the parts come together, well package, fair well
Worked for my taotao 50,great electrical rebuild and bring my scooter back to life.