EOPOAYI Electric-Start Wiring Harness & PZ20 Carburetor Kit for 110–125cc ATVs — 12V 65W Ignition, CDI, Regulator

Complete electric-start wiring harness and PZ20 carburetor kit that replaces and upgrades ignition, charging, and fuel components on 70–125cc Chinese 4-stroke ATVs.

This EOPOAYI kit bundles a PZ20 carburetor with a full electric-start wiring harness and all related ignition and charging parts to restore or upgrade small-displacement Chinese quads such as TaoTao and Coolster. It includes the coil, CDI, regulator/rectifier, stator, solenoid relay, ignition switch, spark plug, fuel fittings and a 35mm air filter, plus mounting hardware and a carbon dirt jet cleaning tool—designed for 12V 65W electric-start systems on 70cc–125cc 4-stroke engines.

Which ATV models and engine sizes is this kit compatible with?

The EOPOAYI assembly is built for common Chinese-brand 4-stroke ATVs and is compatible with many 70–125cc engines that use a PZ20 carburetor and 12V 65W electric-start systems. Confirm model fitment and wiring diagrams before ordering to ensure plug-and-play compatibility.

• Works with TaoTao and Coolster 110cc and 125cc quads
• Also fits Kazuma, Baja, X-pro, Vitacci, Icebear and similar Chinese brands
• Designed for 70cc–125cc 4-stroke engines using PZ20 carburetor
• Not recommended for excessively old or heavily modified vehicles

How does the PZ20 carburetor improve fuel use and performance?

EOPOAYI supplies a PZ20 carburetor that aims for a more efficient mixture and smoother throttle response than larger PZ22 variants on small engines. It’s matched with the ignition and charging components in this kit so the engine receives consistent spark timing and fuel delivery for better overall drivability.

• PZ20 size tuned for improved fuel economy on 110–125cc engines
• Includes intake manifold, red rubber fuel line, filters and clips
• Comes with a carbon dirt jet cleaner to maintain jet performance
• Gaskets, screws and O-ring supplied for proper sealing and fit

What electrical parts are included and what should I check before installation?

The kit includes a 6-coil 5-wire stator (magneto), ignition coil, full-wave regulator/rectifier, 5-pin AC CDI box, solenoid relay, ignition key switch, multifunction ATV switch, fuse and cable ties. Verify polarity and wiring diagram—incorrect connection may cause short circuits or malfunction.

• Red lead = positive, black lead = negative; connect relay terminal to positive
• 12V 65W system; suitable for electric-start 110cc engines
• Check wiring diagram and professional installation recommended
• Includes fuse and ties for a tidy, safe installation

What parts come in the box and what tools or extra parts might I need?

The package contains the wiring harness, ignition coil, CDI box, solenoid relay, spark plug, regulator/rectifier, ignition switch, multifunction switch, stator, fuse, cable ties, carburetor, air filter, intake manifold, fuel line, fuel filters, clips, screws, gaskets and a carbon dirt jet cleaner. You may still need basic hand tools and possibly model-specific mounting hardware.

• All major electrical and fuel components required for retrofit or replacement
• Hardware: 2 sets of screws, 6 clips, 2 gaskets, 1 O-ring included
• Installers should have hand tools, a wiring diagram and mechanical experience
• Professional installation advised if unsure about electrical polarity or routing

Who this is for: This EOPOAYI kit is aimed at ATV owners, hobbyists and repair shops working on small Chinese 4-stroke quads (70–125cc) who need a comprehensive electric-start wiring and carburetor replacement. It’s a good fit for restoring nonfunctional electrics, upgrading from worn fuel parts, or consolidating multiple repairs into a single parts kit—provided you confirm electrical compatibility and follow wiring diagrams or seek professional help for installation.