WISECO 8635P80 Piston Domed 193564143716 2VP 1981

( Brand: Wiseco ), ( Manufacturer Part Number: 8635P80 ), ( Part Type: Piston ), ( Carb: May Not Be Able To Ship To Ca Or Other States ), ( Alt Mpn 1: 101180 ), ( Alt Mpn 2: Wis8635p80 ), ( Category 1: Top End Kits / Pistons / Rings ), ( Ride Type 1: Motorcycle Street ), ( Average Delivery Time: 2-3 Days ), ( Package Weight: 1.1000 ), ( Package Length: 4.40 ), ( Package Width: 4.30 ), ( Manufacturer Warranty: 90 Days ), ( UPC: 193564143716 )

Review WISECO Piston For Yamaha 2vp Domed 1981 fits XS650 1974

Wiseco 8635P80 Domed Piston for Yamaha XS650 2VP (1974-1981)

The Wiseco 8635P80 piston is a high-performance replacement option for the original piston in Yamaha XS650 2VP motorcycles manufactured between 1974 and 1981. This piston is meticulously engineered to ensure a perfect fit, optimal power, and unmatched durability.

The piston is domed, featuring a compact and rounded combustion chamber. This design aids in an efficient combustion process, resulting in increased power output. The dome also contributes to a more uniform fuel-air mixture, enhancing performance and combustion efficiency.

Manufactured using a high-strength aluminum alloy, this piston boasts exceptional tensile strength and durability. The aluminum alloy remains lightweight, ensuring minimal additional weight to the engine, thus contributing to improved overall performance and fuel efficiency.

The Wiseco 8635P80 piston undergoes a rigorous honing process to create a perfectly flat and smooth piston crown. This ensures optimal contact with the engine's cylinder wall, reducing friction and promoting a seamless power transfer.

The piston skirt is designed with a generous gudgeon pin bore, which guarantees a secure fit and minimal sideplay. This results in a more stable piston movement, reducing engine vibrations and enhancing overall engine performance.

The piston ring grooves are precision machined to ensure a proper seal, minimizing compression leakage and optimizing combustion efficiency. Wiseco includes a set of high-quality piston rings with this piston, ensuring a complete and effective replacement solution.

Additional features include a precision-machined piston pin bore and a chamfered piston pin boss to promote easy piston pin installation.

The Wiseco 8635P80 piston is an ideal choice for riders seeking enhanced power, improved fuel efficiency, and extended engine life in their Yamaha XS650 2VP motorcycles. This piston is a direct replacement for the OEM part, ensuring a hassle-free installation process.

Wiseco 8635P80 Piston for Yamaha XS650 (1974-1981): A Detailed Analysis

The Wiseco 8635P80 piston is a popular aftermarket option for the Yamaha XS650 motorcycles manufactured between 1974 and 1981. This piston is specifically designed for high performance and durability. In this analysis, we will discuss the advantages and disadvantages of using the Wiseco 8635P80 piston in your Yamaha XS650.

1. Enhanced Performance: The Wiseco 8635P80 piston is designed to provide improved engine performance. The piston's domed shape increases the compression ratio, leading to better combustion efficiency and increased horsepower.

2. Durability: The piston is made from high-quality forged aluminum, making it more durable than the OEM piston. The forging process eliminates porosity and other defects that can lead to piston failure.

3. Reduced Engine Temperature: The Wiseco piston has a thinner wall and a larger cooling gallery. This design helps to reduce engine temperature, which is crucial for the longevity of the motorcycle's engine.

4. Improved Ring Sealing: The piston features a nitrided skirt, which improves ring sealing and reduces oil consumption.

5. Customizable: Wiseco offers various piston designs and specifications to cater to different performance goals and applications.

1. Cost: The Wiseco 8635P80 piston is more expensive than the OEM piston. The price difference can be significant, making it an investment for those who prioritize performance and durability.

2. Installation Complexity: Installing the Wiseco piston requires specific tools and knowledge. It's recommended to seek professional assistance to ensure proper installation.

3. Potential Clearance Issues: Depending on the specific engine configuration, clearance issues may arise when installing the Wiseco piston. Proper measurement and clearance adjustment may be necessary.

The Wiseco 8635P80 piston is an excellent choice for Yamaha XS650 owners who are looking for improved engine performance and durability. Its advantages, such as enhanced performance, durability, reduced engine temperature, improved ring sealing, and customizability, make it a worthwhile investment for those who prioritize these aspects. However, its cons, including cost, installation complexity, and potential clearance issues, should be carefully considered before making a purchase. Ultimately, the decision to purchase the Wiseco 8635P80 piston depends on your budget, performance goals, and technical capabilities. If you are comfortable with the investment and have the necessary resources, the Wiseco piston can significantly enhance your Yamaha XS650's performance and reliability.

Details:

Wiseco High-Performance piston kits are priced with piston, rings, pins and cir clips unless noted otherwise. 100% satisfaction guaranteed. Oversize pistons require cylinder sleeking. Innovative forging design and piston skirt provide maximum horsepower torque.

It should not be installed on a vehicle that is driven public roads and highways. Combined shipping available. Piston 8635P80 for Yamaha XS650 2VP Domed 1974 1981 8635P80:: Forged from high-silicon aluminum alloy maximum product strength and dependability.

part #: 8635p80 prices

• $197.99-$219.95

specifications pistondon:

• for models: Xs650
• for makes: Yamaha
• for years: 1974
• brand: Wiseco
• mpn: 8635p80
• part type: Piston
• carb: May Not Be Able To Ship To Ca Or Other States
• alt mpn 1: 101180
• alt mpn 2: Wis8635p80
• category 1: Top End Kits / Pistons / Rings
• ride type 1: Motorcycle Street
• average delivery time: 2-3 Days
• package weight: 1.1000
• package length: 4.40
• package width: 4.30
• manufacturer warranty: 90 Days
• upc: 193564143716

seller pistondon:

• rating: 99.4%
• city: Hilliard, Ohio
• # reviews: 496277

shipping pistondon:

• transit: 3-6 Days
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery, FedEx 2Day, FedEx Standard Overnight
• cost: $0.00
• class: Standard, Expedited, One-day
• type: Calculated

payments pistondon:

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

general pistondon:

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

offer pistondon:

• started: December 6, 2025
• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock

returns pistondon:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

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