CDI Box Unit ECU For Yamaha Banshee 350 YFZ350 ATV 1987 1988-1994 1989 1990 US

CDI Box Unit ECU for Yamaha

This ignition control unit controls spark timing and combustion cycles on compatible all-terrain vehicles.

Overview

This replacement CDI box unit ECU restores proper ignition timing to ensure dependable starting and throttle response. Engineered to match original electrical specifications, this CDI box unit ECU maintains a stable spark curve under heavy riding conditions. It is designed for riders and mechanics restoring ignition system reliability on classic sport ATVs.

Built For Performance

• Durable sealed casing to protect internal electronics from moisture
• Direct-plug connectors for straightforward wiring integration
• Optimized circuitry to maintain consistent spark energy across RPM ranges
• Heat-resistant materials to withstand harsh engine bay temperatures

Fits These Machines

• for Yamaha Banshee 350 YFZ350

On-The-Job Use

• Replacing faulty ignition modules on classic sport ATVs
• Restoring spark to engines experiencing intermittent misfires
• Overhauling vintage off-road vehicle electrical systems

Specs At A Glance

Good To Know

Q: What are the signs of a failing CDI box? A: No spark, intermittent ignition cuts, or a sudden loss of engine power often indicate a faulty unit.

Q: Is this unit plug-and-play? A: Yes, it features matching OEM-style connectors for a direct connection to the factory wire harness.

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