High-performance CDI ignition, part number 6B4-85540-00, compatible with Yamaha and other motorcycles/quads, improves engine response.

【Precise Replacement for Original Parts】 This product is a high-performance CDI (capacitor ignition diode) from GOOFIT, exactly matching the original part number 6B4-85540-00. It was specifically designed for certain Yamaha and other brands of motorcycles, ATVs, and off-road vehicles that use this ignition diode. It provides a direct solution for ignition problems and replaces worn original parts.

【Optimized Ignition Performance】 Compared to some original parts, the GOOFIT CDI features an optimized ignition curve that improves engine response and torque in the low and mid-range RPMs. This results in more precise throttle response and smoother acceleration, while maintaining stable performance even at high RPMs.

High Quality and Stability】

Main Components: Utilizes industrial-grade integrated circuits and electronic components to ensure precise and stable ignition signals with excellent resistance to high temperatures and vibrations.

Robust Housing: Typically constructed from high-temperature resistant engineering plastic, it offers excellent protection against water and dust (please refer to the product label for specific protection levels) and is suitable for the harsh conditions found in the engine compartment. Reliable Connection: The interface is fully compatible with the vehicle's original wiring harness; quick and easy installation ensures a reliable electrical connection. [Fixes Common Faults] Effectively resolves issues related to aging or damage to the vehicle's original CDI: difficulty or inability to start the engine; rough idling, frequent stalling; poor acceleration, inability to reach high speeds; Incorrect ignition timing, which leads to engine overheating or knocking.