fits model: Yz125. make: Yamaha. year: 2002–2004.

( Brand: Namura Technologies ), ( Manufacturer Part Number: NX-40001-C ), ( Part Type: Piston )
The Namura NX-40001-C Standard 53 96mm Piston Kit is specifically designed for the Yamaha YZ125 motorcycles of the 2002-2004 models. This piston kit is an upgrade that can help enhance the performance of your YZ125 by providing a higher compression ratio, which leads to increased power output and torque.
The piston kit includes a high-quality forged piston that measures 96mm in diameter and has a compression height of 53mm. The piston's crown is made of a high-strength aluminum alloy, ensuring durability and resistance to wear and tear. The piston skirt is designed to provide a tight fit in the cylinder bore, resulting in minimal friction and excellent sealing.
The piston kit also includes a lightweight and durable rings set, which includes a compression ring, a transferring ring, and an oil control ring. These rings are made of top-quality materials that can withstand the harsh conditions of high-performance riding. The rings have been designed to provide optimal sealing, ensuring that combustion gases stay inside the engine and that no oil leaks out.
The piston kit is also compatible with the stock connecting rod and crankshaft, making it an easy upgrade for those looking to improve the performance of their Yamaha YZ125. The kit comes with all necessary hardware, which includes gaskets, bolts, and other installation components.
It is important to note that installing this piston kit requires a certain level of mechanical expertise, and it should only be installed by a qualified technician. Improper installation could lead to damage to the engine or other components. However, with proper installation, the Namura NX-40001-C Standard 53 96mm Piston Kit can help take your Yamaha YZ125 to the next level in terms of performance.
This piston kit provides a compression ratio of approximately 13:1, which is a significant increase from the stock piston's compression ratio of around 11:1. This increased compression ratio allows for more efficient combustion and more power at the crankshaft. Furthermore, this piston kit is recommended for those riders who are looking to race their Yamaha YZ125 or for anyone who wants to extract the maximum performance from their bike.
The Namura NX-40001-C Standard 53 96mm Piston Kit is designed to be a direct replacement for the stock piston and rings. It is manufactured to strict tolerances, ensuring a perfect fit and optimal engine performance. With its high-quality materials, precise engineering, and excellent craftsmanship, this piston kit is an excellent choice for those looking to enhance the performance of their Yamaha YZ125.
The Namura NX-40001-C Standard 53 96mm piston kit for Yamaha YZ125 (2002-2004) is designed to improve the performance of your motorcycle engine by replacing the stock piston with a high-performance aftermarket option. Here are some potential pros and cons of buying this piston kit:
Pros:1. Increased Power: This piston kit is designed to offer improved performance by increasing the compression ratio of your engine. As a result, you can expect to see an increase in horsepower and torque.
2. Enhanced Engine Response: The high-performance piston offers improved combustion efficiency, which can lead to better engine response and smoother power delivery.
3. Durability: The piston kit is constructed using high-quality materials, which can lead to increased durability and longer engine life.
4. Customizability: This piston kit offers a way to customize your engine to your specific riding needs and preferences.
5. Improved Thermal Efficiency: The piston kit is designed to reduce thermal losses, which can help to improve overall engine efficiency and reduce operating temperatures.
Cons:1. Cost: Aftermarket piston kits can be quite expensive compared to stock parts. This kit may not be affordable for all riders.
2. Installation Complexity: Installing a piston kit can be a complex and time-consuming process, requiring specialized tools and technical expertise.
3. Potential Performance Variability: Aftermarket pistons can vary significantly in terms of quality and performance, so there is a risk that you may not see the expected performance gains.
4. Safety Risks: Changing the compression ratio of your engine can increase the risk of engine damage or detonation if not done correctly.
Conclusion:The Namura NX-40001-C Standard 53 96mm piston kit for Yamaha YZ125 (2002-2004) offers the potential for increased power, improved engine response, durability, and customizability. However, it also comes with some drawbacks, including cost, installation complexity, potential performance variability, and safety risks. Ultimately, the decision to purchase this piston kit will depend on your specific riding needs, budget, and technical expertise. If you are an experienced rider with a well-equipped garage, and you are looking for greater engine performance, then this piston kit could be a worthwhile investment. However, for less experienced riders or those with limited resources, it may be wiser to stick with stock parts or seek professional advice before attempting an aftermarket piston installation.
Piston dome is anodized for superior heat resistance and longer lifespan. Kit is for standard bore size - 54.00mm. Compression ratio of 10.8:1. Manufactured by Namura.
Compatible with Yamaha model's below: 2002 YZ125. Size C piston is 53.96mm. Piston skirts are Molybdenum Teflon coated to minimize resistance/wear and provide extended life. Kit Includes piston, rings, pin clips you get exactly what is pictured.
Made in Taiwan.