fits model: Gt80. make: Yamaha. year: 1978–1979.

( Manufacturer Part Number: 2F4-11637-10-00 ), ( Part Type: Piston )
This product is a set of two piston assemblies specifically designed for 1978-1979 4th generation Yamaha GT80 engines. The pistons are identified by their part numbers: 2F4-11638-10-00 and 2F4-11637-10-00.
The 2F4-11638-10-00 piston is a replacement part for the 1978-1979 GT80 engine, with a diameter of 1.00mm. It is made to exact specifications for optimal performance and reliability. The piston is crafted from high-quality materials, ensuring durability and resistance to wear and tear. It is precision-machined to ensure a perfect fit in the engine cylinder, ensuring proper compression and combustion.
The 2F4-11637-10-00 piston is another replacement part for the same engine model and year, also with a diameter of 1.00mm. Like its counterpart, it is made to strict quality standards and is precision-machined for a perfect fit in the engine cylinder.
Both pistons are designed for use in the GT80 engine's two-stroke, two-cylinder, air-cooled, four-stroke engine. They are suitable for regular use and are an excellent choice for engine maintenance or repair.
In summary, this set of pistons is a must-have for any GT80 engine owner looking to maintain or repair their engine. The pistons are made to exact specifications, ensuring reliable performance and durability. They are precision-machined for a perfect fit in the engine cylinder, ensuring proper compression and combustion. The set includes two pistons, with part numbers 2F4-11638-10-00 and 2F4-11637-10-00, making it a comprehensive solution for GT80 engine piston replacement.
Pros of buying a 1.00mm piston (2f4-11638-10-00) for a 1978-1979 Yamaha GT80:1. Improved engine performance: The 1.00mm piston is designed to increase the compression ratio, which can lead to increased horsepower and torque. This can result in improved acceleration and overall performance.
2. Enhanced durability: The piston is made of high-quality materials and is designed to withstand the rigors of off-road use. This can help reduce the risk of engine failure and extend the lifespan of the engine.
3. Increased fuel efficiency: The increased compression ratio can also lead to improved fuel efficiency. This means that you may be able to get more miles out of a tank of gas, which can save you money in the long run.
Cons of buying a 1.00mm piston for a 1978-1979 Yamaha GT80:1. Potential engine damage: If not installed correctly, the 1.00mm piston can cause engine damage. It is important to follow the installation instructions carefully and to use high-quality seals and gaskets to prevent leaks.
2. Increased noise levels: The increased compression ratio can also lead to increased engine noise levels. This may be a concern if you are looking for a quieter ride.
3. Potential decreased reliability: The 1.00mm piston may not be as reliable as the original piston. This is because it is designed to push more fuel and air into the engine, which can put more stress on the engine components.
Recommendation:If you are looking to improve the performance of your 1978-1979 Yamaha GT80, the 1.00mm piston (2f4-11638-10-00) can be a good option. However, it is important to install it correctly and to use high-quality seals and gaskets to prevent leaks. Additionally, you may want to consider the potential for increased noise levels and decreased reliability. If you are unsure about the installation process or the potential impact on your engine, it may be a good idea to consult with a professional mechanic before making a purchase. Overall, if you are willing to take the necessary precautions, the 1.00mm piston can be a worthwhile investment for improving the performance of your Yamaha GT80.
00mm oversize nos oem 2f4 Yamaha GT80 piston 4th o.