Compatible with Yamaha YBR125 (2005-2006) / XT125R / XT125X (2007) 8-pin CDI ignition, original factory code 3D9-H5540-01, high-performance replacement module.

【Precise 8-Pin Interface – Genuine Replacement Part】 This product is an 8-pin CDI ignition module (capacitor ignition) specifically designed for various Yamaha 125cc models and is equivalent to the original part number 3D9-H5540-01. It has been precisely engineered to the electrical specifications and 8-pin interface of the original vehicle, ensuring perfect compatibility with the Yamaha YBR125, XT125R, and XT125X models of the specified model years. It is the reliable choice for replacing faulty original parts and restoring optimal ignition performance.

【Optimized Ignition Performance】 Compared to the original part, this CDI module uses an improved ignition curve, resulting in optimized engine response and increased fuel efficiency across the most common RPM range.

This leads to smoother acceleration, a more stable idle, and improved starting. **[Robust and Durable Construction]** **Main Components:** Highly stable integrated circuits and high-temperature resistant capacitors ensure a precise and powerful ignition signal, even under varying operating conditions. **Robust Housing:** The impact-resistant housing made of engineering-grade plastic provides basic protection against water and dust and adapts to the vibrations and temperature fluctuations in the motorcycle's engine compartment. **Precise Interface:** The 8-pin connector is fully compatible with the vehicle's original wiring harness, allowing for quick and easy installation. **[Resolves Common Problems]** Replacing this part effectively resolves the following issues caused by aging or damage to the original CDI: **Starting difficulties or unexpected engine stalling.** **Rough idle and fluctuating engine speed.** **Loss of power and hesitation during acceleration.** **Excessive fuel consumption.** **Engine overheating or unusual noises due to incorrect ignition timing.** **[Easy Installation]** Typically located under the seat or inside the side panel. To install, first disconnect the negative battery terminal, unplug the 8-pin connector from the original CDI, replace with this product, and secure it before reconnecting. Important Compatibility Information: Compatible Models and Years: Yamaha YBR125 (2005, 2006), Yamaha XT125R (2007), Yamaha XT125X (2007); Corresponding Original Equipment Part Number: 3D9-H5540-01; Interface type: 8-pin connector