OTOHANS AUTOMOTIVE Ignition & Charging Kit for 50–125cc ATVs — 5‑Pin CDI, Ignition Coil, Regulator & Solenoid

Complete ignition and charging kit including a 5-pin CDI, ignition coil, 4-pin voltage regulator, solenoid relay, two spark plugs and installation ties for 50cc–125cc horizontal engines.

This all-in-one replacement bundle from OTOHANS AUTOMOTIVE gathers the most frequently failing electrical components for small Chinese-made four-stroke horizontal engines into a single kit. It’s intended to restore spark, regulate charging voltage, and provide a reliable starter relay for ATVs, go-karts, dirt bikes, pit bikes, mopeds and scooters that use compatible 50cc, 70cc, 90cc, 110cc or 125cc engines. The kit is not designed for GY6 or CG engine platforms—verify fitment against your original parts before installing.

How will this kit restore my vehicle’s starting and ignition performance?

The CDI module and ignition coil are the primary components that generate and deliver the high-voltage spark to the spark plug. If the engine has weak or intermittent ignition, replacing both units together removes two common failure points and improves reliability.

• 5-pin CDI module replaces worn electronic ignition timing control.
• Ignition coil supplies a stable high-voltage pulse to spark plugs.
• Two replacement spark plugs ensure fresh electrodes for combustion.
• Includes zip ties to secure wiring and prevent connector strain.

What charging and electrical protection does the voltage regulator provide?

The included 12V 4-pin voltage regulator rectifier converts alternator output to a steady DC voltage and protects the battery and electronics from over-voltage. It’s sized for 50–125cc horizontal engine bikes and ATVs to keep lights and battery charging within safe limits.

• Rectifies AC from the stator into DC for battery charging.
• Regulates voltage to prevent dips and spikes to sensitive circuits.
• 4-pin connector designed to match common Chinese small-engine harnesses.

Will the starter solenoid in the kit work with my starter system?

The supplied solenoid relay is a general-purpose starter relay compatible with many TaoTao, Roketa, Sunl and similar mini-bike and ATV starters listed for 50–250cc in common applications. It completes the starter motor circuit when you press the starter switch, so a failing relay often manifests as a click with no starter engagement.

• Heavy-duty relay contacts handle starter motor current safely.
• Designed to fit common terminal layouts on small Chinese ATVs.
• Use as a direct replacement for intermittent or non-engaging starters.

How should I check compatibility and install the parts?

Before installation, match each connector and terminal on the kit parts with the stock components on your vehicle. Visual and pin-count matching prevents mis-wiring; if wiring differs, consult a wiring diagram or a mechanic. The package includes zip ties to tidy harnesses after installation.

• Confirm your engine is a 4-stroke horizontal 50–125cc type (not GY6/CG).
• Compare connector pin counts and shapes to originals before connecting.
• Tighten grounds and engine mounts, then secure wires with supplied zip ties.

Who this kit is for: This OTOHANS AUTOMOTIVE set suits owners, DIY mechanics and small repair shops servicing Chinese-made ATVs, go-karts, dirt bikes, pit bikes, mopeds and scooters with horizontal 4-stroke engines in the 50–125cc range. It’s a practical solution for machines showing weak spark, charging problems, or starter relay failure, and for anyone who prefers replacing multiple related electrical parts at once to reduce troubleshooting time. For any uncertainty about fitment or wiring, compare your vehicle’s stock parts to the kit contents or contact customer support for guidance.