CAFEZAYO Complete Wiring Harness Kit for GY6 150cc 152QMI/157QMJ — Regulator, CDI & Ignition Switch

CAFEZAYO's Complete Wiring Harness Kit for GY6 150cc engines is a full replacement set that includes the wiring harness, spark plug, 8‑pole stator, ignition coil, 6‑pin CDI, starter relay/solenoid, regulator and a keyed ignition switch.

This kit is built to replace the electrical backbone on many 150cc ATV, go‑kart and small 4‑wheel applications using the 152QMI / 157QMJ (GY6) platform. It brings together the most commonly replaced components in one boxed package so you can restore starting, charging and ignition systems without sourcing multiple parts. Designed for compatibility with a wide list of 150cc models, the kit is intended for users who need a complete, budget‑friendly electrical overhaul.

Which vehicles and engines does this wiring kit fit?

The CAFEZAYO kit fits many 150cc ATVs and 4‑wheel utility vehicles that use GY6 style 152QMI or 157QMJ engines. It commonly replaces original wiring and ignition parts on aftermarket and Chinese-manufactured machines.

• Compatible brands: Tao Tao, Coolster, Yamoto, KLX, Kazuma, Kymco, Baja, Roketa and similar 150cc ATVs.
• Also matches some 125cc models listed (verify stator wiring and connector match).
• Not compatible with scooter/moped electrical systems—confirm model type before ordering.

What components are included and why they matter?

This kit contains all primary electrical parts you’ll typically need when the engine won’t start, the battery won’t charge, or ignition components have failed. Each part is supplied to work together for simplified installation.

• Wiring harness — preassembled main loom with factory‑style connectors for easier swap.
• 8‑pole magneto stator (5 wires) — replaces charging and pulse pickup functions.
• 6‑pin AC CDI box, ignition coil and spark plug — restore ignition timing and spark.
• Starter relay/solenoid, regulator/rectifier and keyed switch — complete starting and voltage control.

How difficult is installation and what should I check first?

Installation requires basic mechanical skill and familiarity with electrical diagrams. Carefully review the included wiring schematic and identify the magneto/stator wiring before connecting components; mismatched connections can prevent starting or damage parts.

• Compare connector pinouts and wire colors with your original harness.
• Confirm stator mounting bolt spacing and wiring plug orientation match your engine.
• Disconnect the battery while routing harness and reconnect only after double‑checking connections.

Will this kit improve reliability or performance?

Replacing worn or damaged electrical components with the full kit can restore reliable starts and charging, and reduce intermittent faults caused by aged wiring or failed modules. It is a functional replacement rather than a performance upgrade.

• Regulator/rectifier and starter relay help protect circuits from overload.
• New ignition coil and CDI help ensure consistent spark timing and starts.
• Prewired harness reduces installation errors versus piecemeal parts.

Who is this for: This CAFEZAYO wiring harness kit is aimed at owners and mechanics of 150cc GY6‑based ATVs, go‑karts and small utility 4‑wheelers who need a complete electrical replacement. Choose this kit if your machine has charging troubles, intermittent ignition, a faulty starter relay, or if you prefer replacing the entire electrical system at once for reliability. Not recommended if you operate a scooter/moped—verify engine type and connector compatibility before purchase.