CDI Box For 50cc 70cc 90cc 110cc 125cc Scooter ATV Quad Dirt Bike Go Kart (5Pin)

CDI Box For 50cc 70cc 90cc 110cc 125cc Scooter ATV Quad Dirt Bike Go Kart (5Pin)

This 5 pin CDI box controls ignition timing on 50cc to 125cc four-stroke scooters, ATVs, quads, dirt bikes, and go karts, replacing the stock ignition module to restore reliable spark and smooth running.

Overview

This CDI box is a 5 pin ignition control module for 50cc, 70cc, 90cc, 110cc, and 125cc four-stroke engines used in scooters, ATVs, quads, dirt bikes, and go karts. It handles spark timing so the engine fires consistently from cold start through full throttle. It is aimed at riders and mechanics replacing a failed or intermittent CDI on small-displacement machines.

Built For Performance

• 5 pin plug configuration matches common small-displacement four-stroke connectors
• Solid-state circuitry delivers stable spark timing across the RPM range
• Sealed body resists moisture, dust, and vibration in off-road use
• Direct replacement footprint for standard CDI units on scooters and go karts
• Works with CDI-style ignition systems on 50cc to 125cc four-stroke engines

Fits These Machines

• for 50cc four-stroke scooters, ATVs, quads, dirt bikes, and go karts with 5 pin CDI
• for 70cc four-stroke scooters, ATVs, quads, dirt bikes, and go karts with 5 pin CDI
• for 90cc four-stroke scooters, ATVs, quads, dirt bikes, and go karts with 5 pin CDI
• for 110cc four-stroke scooters, ATVs, quads, dirt bikes, and go karts with 5 pin CDI
• for 125cc four-stroke scooters, ATVs, quads, dirt bikes, and go karts with 5 pin CDI

On-The-Job Use

• Replacing a failed CDI causing no-start or weak spark
• Restoring ignition on youth ATVs and recreational go karts
• Servicing 50cc to 125cc four-stroke scooters and dirt bikes
• Keeping spare ignition modules in a small-engine repair shop

Specs At A Glance

Good To Know

Q: How do I confirm this CDI fits my machine? A: Count the pins on your existing CDI connector and verify it has 5 pins with the same layout. Confirm your engine is a 50cc to 125cc four-stroke.

Q: What if my machine still has no spark after fitting this CDI? A: Check the stator, pickup coil, kill switch, and wiring harness, since any of these can cause a no-spark condition. Faulty grounds are a frequent culprit on small four-stroke engines.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.