WISECO 767M05250 Piston Kit Supermini 80/85 52.50MM

( Brand: Wiseco ), ( Manufacturer Part Number: 767M05250 ), ( Part Type: Piston ), ( Engine Type: 2-stroke ), ( Surface Finish: Forged Aluminum W/ Moly Skirt Coating ), ( Country/region Of Manufacture: United States )

Review WISECO Piston Kit Yamaha 80/85 52.50mm Supermini Over Bore fits YZ 1993–2019

Introducing the WiseCo 767M05250 piston kit, an excellent upgrade solution for the Yamaha YZ 80/85 52.5mm supermini motorcycles from 1993 to 1995. This high-performance piston kit is designed to deliver enhanced power, improved reliability, and superior durability for riders seeking to boost their riding experience.

The WiseCo 767M05250 piston kit comprises of a high-strength forged piston and a matching ring set. The forged piston is precision-machined to ensure a perfect fit and optimal engine performance. The piston crown is designed with a dished shape to provide increased compression and improved combustion efficiency. The skirt of the piston is ribbed to reduce friction and heat transfer, allowing for smoother engine operation and better longevity.

The ring set included in this kit consists of a compression ring, a oil control ring, and a skirt oil scraper ring. These rings are made from high-quality materials to ensure a tight seal and efficient oil control, reducing blowby and improving engine performance. The compression ring is designed with a tapered, radiused edge to ensure proper seating and prevent ring groove damage.

The piston kit also includes a piston pin and a wrist pin retainer. The piston pin is made from high-strength material to ensure adequate load-bearing capacity and durability. The wrist pin retainer is precision-machined to provide a secure fit and maintain proper piston to crankshaft alignment.

In conclusion, the WiseCo 767M05250 piston kit is an excellent upgrade solution for Yamaha YZ 80/85 52.5mm supermini motorcycles. This high-performance piston kit delivers enhanced power, improved reliability, and superior durability, allowing riders to enjoy a more exhilarating and efficient riding experience. With its precision-machined components and high-quality materials, this piston kit is a must-have for any serious supermini rider.

Wiseco 767M05250 Piston Kit for Yamaha YZ 80/85: Pros, Cons, and Conclusion

The Wiseco 767M05250 piston kit is a popular aftermarket option for owners of Yamaha YZ 80/85 supermini motorcycles manufactured between 1993 and 1995. In this analysis, we will discuss the advantages and disadvantages of investing in this piston kit and provide a conclusion with a recommendation.

1. Enhanced Performance: The Wiseco piston kit is designed to improve engine performance by increasing power output and providing better throttle response. This can make your motorcycle faster and more responsive, which is especially beneficial for off-road riding.

2. Durability: Wiseco pistons are renowned for their durability and resistance to detonation, which is crucial for high-performance applications. The piston kit includes a lighter weight piston, which can help reduce engine weight and improve overall performance and efficiency.

3. Improved Reliability: The piston kit's design may help improve engine reliability by reducing the likelihood of piston failure, especially in high-stress conditions. This can save you money and hassle in the long run.

1. Cost: The Wiseco piston kit is more expensive than OEM (original equipment manufacturer) pistons. The increased price may be a deterrent for some buyers, especially those on a tight budget.

2. Installation Complexity: Installing the piston kit requires a certain level of mechanical expertise. If you are not confident in your ability to install the kit yourself, you may need to pay for professional installation, which can add to the overall cost.

3. Potential for Engine Changes: Installing a high-performance piston kit like the Wiseco 767M05250 may require additional engine modifications, such as a new crankshaft or camshaft, to fully realize the performance gains. These modifications can add to the overall cost and complexity of the project.

The Wiseco 767M05250 piston kit offers several advantages for Yamaha YZ 80/85 owners, including enhanced performance, durability, and improved reliability. However, the kit comes with some disadvantages, such as a higher cost, installation complexity, and potential for additional engine modifications.

If you are looking to significantly improve the performance of your Yamaha YZ 80/85 and are willing to invest the time and money into the project, the Wiseco piston kit could be an excellent choice. However, if you are on a tight budget or are not confident in your mechanical abilities, you may want to consider other options or seek professional advice before making a decision.

If you decide to pursue the Wiseco piston kit for your Yamaha YZ 80/85, be sure to do thorough research and preparation before beginning the installation process. Consider seeking advice from experienced mechanics or joining online forums to learn from the experiences of others. Additionally, carefully review the installation instructions and gather all necessary tools and components before starting the project. With proper preparation and attention to detail, you can successfully install the Wiseco piston kit and enjoy the performance benefits it provides.

Details:

Due to the nature of performance applications, this kit is sold without any express warranty merchant ability or fitness for a particular reason. New Complete Wiseco Racers Choice Piston kit for. 5.5mm YZ-80 / 5mm YZ-85 Oversize. For a Yamaha YZ80 1993 2001 / YZ85 2002-2019.

Piston Kit sold complete with: Piston, Rings, Wrist pin cir clips. Armor glide Skirt Coating. Crankcase Clearance required for 50mm and larger. The provided image are for illustration purposes only; Actual product appearance may vary.

Wiseco Piston Part # 767M05250 52.50mm Bore Size. Installation of this part might adversely affect the vehicle manufactures warranty coverage. Titanium Nitrite Coated Rings.

part #: 767m05250 prices

• $137.20-$177.95

specifications pistondon:

• for models: Yz
• for makes: Yamaha
• for years: 1993-2019
• brand: Wiseco
• mpn: 767m05250
• part type: Piston
• engine type: 2-stroke
• surface finish: Forged Aluminum W/ Moly Skirt Coating
• country/region of manufacture: United States

returns pistondon:

• policy: No Returns

payments pistondon:

• other
• wallet: Apple-pay
• credit card: Mastercard

offer pistondon:

• sold: 0
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: March 26, 2025

general pistondon:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
• condition: New other see details

shipping pistondon:

• transit: 3-8 Days
• service: Standard
• cost: $0.00
• class: Standard
• type: Fixed

seller pistondon:

• city: Toledo, Ohio
• # reviews: 30628
• rating: 93.2%

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