fits model: 400. make: Yamaha. year: 1976–1980.

( Brand: Wossner Pistons ), ( Manufacturer Part Number: 8075D200 ), ( Part Type: Piston )
The Wossner 8075D200 piston is an engine component specifically designed for the Yamaha RD 400 motorcycles manufactured between the years 1976 and 1980. Wossner, a renowned name in the automotive industry, is known for producing high-quality pistons that offer excellent performance, durability, and reliability. This piston, engineered under the 8075D series, is made to enhance the power delivery and overall performance of the bike while ensuring a perfect fit for your Yamaha RD 400.
Design and Features:The Wossner 8075D200 piston is precision-machined from forged material, providing a lighter yet stronger piston compared to the OEM cast piston. It features a 75mm bore diameter, designed to supply an optimal size for increased power output. With a compression height of 200mm, this piston fits perfectly into the Yamaha RD 400 engine's stroke length. The crown shape is rounded for better gas flow and enhanced combustion efficiency. The piston also comes with an inverted tapered skirt, which decreases piston-to-wall friction and enhances engine performance.
Performance:The Wossner 8075D200 piston is designed to offer increased power output and better thermal efficiency, providing a more dynamic riding experience for your Yamaha RD 400. By enabling a more efficient combustion process, this piston ensures a smoother engine operation. The reduced piston-to-wall friction through inverted tapered skirt results in improved engine response and acceleration.
Durability and Reliability:This Wossner piston is manufactured using high-quality forged material, ensuring a strong, durable, and long-lasting piston. Owing to the superior materials and advanced manufacturing processes, this piston is proven to outlast the OEM cast piston and provide a notable improvement in overall engine life.
Conclusion:The Wossner 8075D200 piston is an excellent upgrade for any Yamaha RD 400 motorcycle from 1976 to 1980. By offering superior performance, reliability, and durability, this piston is an essential investment for riders who seek to unlock their bike's hidden potential. With its perfect fit and detailed engineering, the Wossner 8075D200 piston is the ideal choice for those looking to enhance the riding experience on their Yamaha RD 400.
1. Enhanced Performance: Wossner pistons are known for their high-quality materials and advanced design, which can potentially improve the engine's power output and overall performance.
2. Durability: The forged pistons are extremely strong and resilient, reducing the risk of piston failure and ensuring longer engine life.
3. Precision Manufacturing: Wossner pistons are precision machined, ensuring a perfect fit and proper clearance, thus reducing the chances of detonation, knocks, or poor engine operation.
4. Temperature Resistance: These pistons offer improved heat resistance, which helps maintain optimal engine temperature and prevents issues such as pre-ignition or engine overheating.
Cons:1. Cost: Wossner pistons are typically more expensive compared to stock or aftermarket pistons from less reputable brands.
2. Installation Difficulty: Installing aftermarket pistons may require additional expertise and specialized equipment. It is recommended to consult a professional mechanic for installation.
3. Potential Clearance Issues: Depending on the specific engine and piston used, clearance issues might arise between the piston and engine components, which can lead to increased wear or engine problems.
4. Break-in Period: New pistons require a break-in period, usually 500 to 1000 miles, to ensure optimal performance and reduce the chances of engine problems.
Conclusion:When deciding whether or not to purchase Wossner Pistons 8075D200 for a 1976-1980 Yamaha RD400, it is essential to weigh the pros and cons carefully. The potential benefits, such as enhanced performance, durability, and temperature resistance, can lead to a more enjoyable riding experience and potentially increase the value of the motorcycle. However, the cost, installation complexity, and potential clearance issues should be considered before making the investment. Ultimately, it is recommended to consult a professional mechanic or Wossner for specific recommendations based on your individual circumstances. If the benefits outweigh the challenges for you, the upgrade could be well worth the initial investment for your motorcycle.
Wossner Pistons are used by leading Supergrass, Aren across and MX GP teams. Made in Germany. All Pistons include piston, ring, wrist pin and locks.
4-stroke Pistons are made using a double-bridged forging design.