WSM-5647-485764 WSM Top End Kit XL700 Yamaha

Review WSM Complete Top-end Kit 81.50mm Yamaha Xl for YAMAHA XL700 700 1999–2004

Introducing the WSM WSM-5647-485764 Top-End Kit, specifically designed for the Yamaha XL 700 XL700 motorcycles manufactured between 1999 and 2004. This top-end kit is an excellent upgrade for riders seeking enhanced performance and reliability from their engine.

The WSM Top-End Kit includes high-performance cylinder heads, pistons, and other essential components. The cylinder heads are CNC-machined from premium aluminum alloy, ensuring a perfect fit and superior cooling capabilities. These heads feature large intake and exhaust ports, allowing for increased air and fuel flow, which ultimately results in more power and torque.

The pistons in this kit are forged from high-strength aluminum alloy, ensuring durability and reliability. They have a compression ratio optimized for modern fuel types, allowing the engine to burn fuel more efficiently and effectively. Additionally, the piston tops are honed to ensure a perfect fit in the cylinder bores for optimal engine performance.

This kit also includes new camshafts, which are designed to provide improved valve timing and duration. The result is a more powerful and responsive engine, with smoother power delivery throughout the RPM range. The camshafts are made from high-quality materials, ensuring long-lasting performance and reliability.

The WSM Top-End Kit also includes new valves, springs, and retainers, ensuring proper engine function and reliability. The valves are made from high-quality steel, providing excellent durability and heat resistance. The valve springs are designed to provide the correct amount of force to keep the valves seated properly, while the retainers hold the valves in place.

Finally, this kit includes new piston rings and ring lands, which help ensure proper sealing of the combustion chamber. These rings are made from high-quality materials, ensuring a long-lasting seal and optimal engine performance.

In conclusion, the WSM WSM-5647-485764 Top-End Kit is an excellent upgrade for Yamaha XL 700 XL700 motorcycles manufactured between 1999 and 2004. This kit includes high-performance cylinder heads, pistons, camshafts, valves, piston rings, and other essential components, all designed to provide enhanced performance, reliability, and durability. Whether you're a weekend warrior or a competitive racer, this kit is an excellent investment for anyone looking to get the most out of their Yamaha XL 700 XL700 motorcycle.

Pros and Cons of Buying a WSM WSM-5647-485764 Top-End Kit for a Yamaha XL700 (1999-2004)

The WSM WSM-5647-485764 top-end kit is a popular aftermarket upgrade for the Yamaha XL700 (1999-2004). This kit promises enhanced performance, improved aesthetics, and superior functionality. In this analysis, we will discuss the key advantages and disadvantages of investing in this upgrade.

1. Enhanced Performance: The top-end kit includes high-performance carburetors, a high-flow air cleaner, and an upgraded exhaust system. These modifications result in an increase in horsepower and torque, providing a more responsive engine.

2. Superior Fuel Economy: The high-performance carburetors optimize fuel delivery, ensuring that the engine receives the ideal fuel mixture. This results in improved fuel efficiency, allowing riders to travel further on a single tank of gas.

3. Enhanced Aesthetics: The WSM top-end kit features a polished finish, adding a touch of elegance to the Yamaha XL700. Additionally, the upgraded exhaust system provides a more pleasing exhaust note.

4. Improved Throttle Response: The high-performance carburetors and upgraded exhaust system contribute to smoother and more responsive throttle response, making the riding experience more enjoyable.

1. Cost: The WSM top-end kit is a premium upgrade, and the cost may be prohibitive for some riders. The kit can cost several hundred dollars, depending on the specific components and the installation costs.

2. Installation Complexity: Installing the top-end kit requires a certain level of mechanical expertise. Riders without experience in engine tuning or carburetor adjustment may find the installation process challenging.

3. Potential for Decreased Reliability: Modifying the engine can increase the risk of mechanical issues. The high-performance carburetors and upgraded exhaust system may require more frequent maintenance and adjustments.

4. Potential for Increased Noise: The upgraded exhaust system may emit a louder exhaust note, which may not be suitable for all riding environments or personal preferences.

The WSM WSM-5647-485764 top-end kit offers several advantages for the Yamaha XL700, including enhanced performance, improved fuel economy, superior aesthetics, and smoother throttle response. However, the cost and installation complexity may be deterrents for some riders. Additionally, the potential for decreased reliability and increased noise may be a concern. Ultimately, the decision to invest in this upgrade depends on an individual rider's priorities, mechanical expertise, and budget.

If you are an experienced rider with a strong mechanical background and a significant budget, the WSM top-end kit may be an excellent investment for your Yamaha XL700. The enhanced performance and improved aesthetics are likely to provide a more enjoyable riding experience. However, if you are a beginner rider or have limited mechanical expertise, it may be worth considering less complex and less expensive upgrades. Additionally, carefully consider the potential risks and costs associated with the top-end kit before making a decision.

Details:

This is helpful if you are buying multiple items. I need to exchange an item. Parts without fitment are to be assumed universal and may require vehicle modification. Wsm complete top-end kit 81.50mm Yamaha xl 700 XL700 1999 -2004: kit contains: top-end gaskets and pistons to rebuild one motor piston bore size: 81.50mm, actual contents may vary from photo, quality construction are exact oem specifications.

Compatibility, Yamaha super jet sj700 1996-2017, wave blaster wb700 1996, wave raider ra700 1996-1997, wave runner iii wra700 1997, wave venture wvt700 1997-1998, xl 700 XL700 1999 -2004.: brand: Wsm, model number: WSM-5647-485764.

specifications watercraftimp:

• for models: Xl700, 700
• for makes: Yamaha
• for years: 1999–2004
• brand: Wsm
• mpn: Wsm-5647-485764

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

offer watercraftimp:

• in stock #: 5
• prices: $189.31–$217.67
• item condition:
  • New
  • New other (see details)
• sold #: 25
• started: july 6, 2025
• options: ship-to-home
• availability: in stock

returns watercraftimp:

• paid by: seller
• policy: returns accepted
• time: 30 days

payments watercraftimp:

• credit card: visa
• wallet: paypal
• other

seller watercraftimp:

• rating: 99.5%
• city: sparks, nv
• # reviews: 64255

shipping watercraftimp:

• service: standard
• type: fixed
• transit: 3-5 days
• class: standard