JingSney Wiring Harness Kit for 50cc–125cc ATVs & Dirt Bikes — Complete Electrics Set with CDI, Ignition Coil

JingSney's complete wiring harness kit replaces the entire electrical system for most 50cc–125cc Chinese-engine ATVs and dirt bikes, delivering a plug-and-play set that includes CDI, ignition coil, stator wiring, relay, rectifier and switches.

This all-in-one electrics set is built to restore or upgrade the wiring on small four-stroke ATVs, quads, go-karts and pit bikes using upright Chinese engines such as Lifan, Loncin, Ducar, Shineray and Zongshen. It groups every major component you normally need for a full electrical replacement into a single package, saving time and compatibility guessing compared with buying parts separately. Before purchasing, check your engine family — this kit is not compatible with GY6-style motors or larger 150cc+ stator/CDI systems.

What components are included and why does that matter?

The kit supplies a full set of electrical parts so you can replace a damaged harness and associated ignition components in one go. That reduces downtime and ensures matched connectors and wiring lengths for typical Chinese-made small engines.

• Wire harness with pre-assembled plugs for key engine connections
• 5-pin AC CDI box and ignition coil for spark timing
• Voltage regulator/rectifier for steady charging and battery protection
• Solenoid relay, A7TC spark plug, ignition key switch, handlebar switch and 10 zip ties

How easy is installation for a DIY mechanic?

Wiring arrives largely plug-and-play with labeled connectors to replace worn or broken OEM harnesses without major fabrication. Basic mechanical skill and familiarity with your vehicle wiring layout are helpful; a professional installation is recommended if you’re unsure.

• Pre-assembled connectors match common Chinese engine pinouts
• Included zip ties help secure routes and prevent chafing
• No cutting or custom soldering required for compatible models
• Follow factory wiring diagram or take photos before removal for easier reassembly

Which vehicles and engines will this kit fit?

This harness is designed for electric-start upright four-stroke engines in the 49–125cc range used by many Chinese brands. It fits most 50cc, 70cc, 90cc, 110cc and 125cc ATVs, quads and dirt bikes using the matching stator/CDI architecture.

• Compatible with engines from Lifan, Loncin, Ducar, Shineray, Zongshen
• Fits models like Coolster, TaoTao-style quads, many pit bikes and go-karts
• Does NOT fit GY6 motorbikes or 150cc+ units with different stator/CDI designs
• Verify connector shapes and pin counts before ordering to confirm fit

What materials and durability features should I expect?

The kit uses heavy-duty copper wiring and reinforced components intended for workshop and field use. These materials aim to improve conductivity and resist the vibration and exposure common on off-road vehicles.

• Thickened copper conductors for stable voltage and reduced heat
• Durable molded connectors to resist moisture and vibration
• Regulator/rectifier and CDI boxes packaged for typical engine mounting locations
• Spark plug and coil matched to common small-engine specifications

Who is this for? This kit is aimed at owners and mechanics of small four-stroke ATVs, quads, pit bikes and go-karts who need a single-source electrical replacement. If you run a Chinese-made 50cc–125cc upright engine and want to restore charging, ignition and switch functionality quickly, this comprehensive set saves parts-hunting and reduces installation time. If your machine uses a GY6 motor or a 150cc+ engine with a different stator/CDI layout, choose a kit built specifically for those systems instead.