fits model: Yz. make: Yamaha. year: 1982–1983.

( Brand: Wiseco ), ( Manufacturer Part Number: 477P6 ), ( Type: Piston Kit ), ( Items Included: Piston Rings, Wrist Pin, Circlips ), ( Piston Diameter: 48.50mm )
The WISCO 477P6 piston kit is a high-performance upgrade for Yamaha YZ 80 motorcycles manufactured between 1982 and 1983. This piston kit stands out for its superior quality, which is due to the use of top-grade materials and advanced engineering techniques.
The pistons in this kit are crafted from forged aluminum alloy, ensuring they are strong, lightweight, and capable of withstanding the rigors of off-road racing or enthusiastic riding. Each piston features a domed top ring land, which enhances the seal between the piston and the cylinder wall, improving combustion efficiency and reducing blowby.
The piston rings are made from nitrided chrome steel, ensuring they have excellent wear resistance, giving them a long lifespan. WISCO applied a phosphating treatment on the piston skirt as well, which enhances the friction between the piston and the cylinder wall, leading to superior engine performance and power delivery.
The piston kit also includes lightweight wrist pins, which reduce reciprocating weight for improved engine response and fuel efficiency. Additionally, the piston kit comes complete with piston rings, circlips, and gudgeon pin bushings.
The WISCO 477P6 piston kit is an ideal choice for Yamaha YZ 80 riders seeking to extract more power and performance from their motorcycle, especially those who engage in off-road racing or high-performance riding. It is easy to install, with installation instructions included in the package, and is compatible with stock and high-performance engines.
This piston kit is backed by WISCO's confidence in their product's quality and performance. By upgrading your YZ 80 with this kit, you'll not only improve the engine's performance and durability but also enhance your riding experience.
The Wiseco 477P6 piston kit is a popular aftermarket upgrade for the Yamaha YZ80 motorcycles manufactured between 1982 and 1983. This piston kit promises increased performance, durability, and reliability. In this analysis, we will discuss the benefits and drawbacks of installing this piston kit in your Yamaha YZ80.
Pros:1. Improved Performance: Wiseco pistons are known for their high compression ratio and increased power output. Installing this piston kit in a Yamaha YZ80 can result in a noticeable improvement in horsepower and torque.
2. Enhanced Durability: The Wiseco pistons feature a stronger material and design, which can help increase the lifespan of the engine. In heavy use or high-performance applications, this can translate to fewer engine rebuilds and saved maintenance costs.
3. Better Ring Sealing: The piston kit comes with new barrel gaskets and piston rings, helping improve the seal between the piston and cylinder wall. This can result in improved combustion efficiency and reduced oil consumption.
4. Customized Solutions: Wiseco offers various piston designs tailored to different riding styles and engine modifications. This allows riders to choose the perfect piston kit for their specific needs, optimizing performance and durability.
Cons:1. Cost: The Wiseco piston kit is often priced higher than OEM pistons. The cost may deter some riders, especially those on a tight budget.
2. Installation Complexity: Installing a piston kit requires removal of the engine from the frame. This process can be time-consuming and labor-intensive, making it a potential disadvantage for those lacking mechanical expertise or resources.
3. Potential Clearance Issues: Some users have reported clearance issues when using aftermarket pistons with certain aftermarket camshafts or crankshafts, which could lead to engine damage if not addressed.
4. Power Increase might not be suitable for novice riders: The power increase provided by the Wiseco piston kit can be quite significant, which might not be suitable for novice riders or those who prefer a more mellow riding experience.
Conclusion:The Wiseco 477P6 piston kit for the Yamaha YZ80 (1982-1983) offers several advantages, including improved performance, enhanced durability, better ring sealing, and customized solutions. However, it also comes with some disadvantages such as higher cost, installation complexity, potential clearance issues, and increased power that may not be suitable for all riders.
Recommendation:For experienced riders looking for increased performance, durability, and efficiency from their Yamaha YZ80, the Wiseco 477P6 piston kit is an excellent choice. However, those on a tight budget or new riders should carefully weigh the potential benefits against the costs andComplexity of installation before making a decision. As always, proper installation and the use of compatible components are essential to ensure optimal engine performance and longevity.
Today, Wiseco 2-stroke pistons are the result of decades experience, incorporating latest in piston manufacturing and design to deliver performance built its name on. Looks like someone opened the Ring package to inspect them, look be in good working order. No Piston Pin in the box. Wiseco 2 Stroke Forged Series Piston Kit, 48.50mm Bore.
Includes high-quality piston ring, circlips. Engineered, forged, and machined in the USA Mentor, OH. Improved tensile strength of forged material optimizes and service life. Wiseco legacy is rooted in 2-stroke piston manufacturing and performance, dating over 80 years ago back to 1941.