16081-W344682-61 WSM Top End Kit Yamaha

Review WSM Top End Kit 1800cc 0.25mm Oversize To 86.15mm Bore For Yamaha for YAMAHA 2008–2012

Introducing the WSM Top End Kit 1800cc for the Yamaha motorcycles produced between 2008 and 2012, specifically model years 2008-2012. This top end kit, with the part numbers WSM 16081-W344682-61, is a premium upgrade for those seeking enhanced performance and durability from their engines.

This top end kit is designed to fit Yamaha motorcycles with an 1800cc engine and a bore size of 86.15mm. The kit includes all the necessary components to upgrade the engine's performance, including new pistons, cylinders, rings, and other critical engine parts. The pistons are made of a high-performance alloy that provides increased strength and durability, while the cylinders are precision-machined to ensure a perfect fit and optimal engine efficiency.

The piston rings in this kit are made of a high-quality material that ensures a tight seal between the piston and cylinder walls, reducing engine blow-by and improving combustion efficiency. These rings are also designed to last longer than OEM parts, reducing the need for frequent replacements.

The WSM Top End Kit 1800cc also includes high-performance camshafts that provide improved valve lift and duration, resulting in increased power and torque throughout the entire RPM range. The kit also includes new valves and springs that ensure proper valve function and maintain optimal engine performance.

This top end kit is a significant investment in your Yamaha motorcycle's performance and longevity. It is designed to provide increased power, improved fuel efficiency, and enhanced durability compared to the stock components. The precision-machined components ensure a perfect fit and optimal engine efficiency, while the high-performance materials provide increased strength and durability.

In conclusion, the WSM Top End Kit 1800cc (part numbers WSM 16081-W344682-61) is a premium upgrade for Yamaha motorcycles produced between 2008 and 2012 with an 1800cc engine and a bore size of 86.15mm. This kit includes new pistons, cylinders, rings, camshafts, valves, and springs that provide increased power, improved fuel efficiency, and enhanced durability compared to the stock components. This is an excellent investment for any Yamaha rider seeking to maximize their engine's performance and longevity.

Pros and Cons of buying a WSM 1800cc Top End Kit for 2008-2012 Yamaha Motorcycles

a. Performance Enhancement: The WSM top end kit is designed to provide improved performance by increasing the engine displacement from 1670cc to 1800cc. This results in more power and torque, making the motorcycle more responsive and faster.

b. Durability: The kit includes oversized pistons and rings, which are heavier and stronger than the stock components. This enhances the engine's durability and allows it to handle increased power and stress.

c. Customization: Installing this top end kit allows motorcycle owners to customize their bikes and improve their riding experience.

d. Improved Throttle Response: The larger engine displacement provides better throttle response, making the motorcycle more enjoyable to ride.

a. Cost: The WSM top end kit is a significant investment, with a price tag higher than stock parts. This may deter some riders from making the purchase.

b. Complex Installation: Installing the kit requires a high level of mechanical expertise and specialized tools. It is recommended that the installation is performed by a professional mechanic.

c. Fuel Consumption: The increased engine size results in higher fuel consumption. Riders should be prepared for this and ensure that they have adequate fuel capacity for longer rides.

d. Noise Level: The enhanced performance of the engine may result in increased noise levels, which may not be desirable for all riders.

The WSM 1800cc top end kit is an excellent option for motorcycle enthusiasts who are looking to enhance the performance of their 2008-2012 Yamaha motorcycle. While the investment is significant and the installation process is complex, the benefits of increased power, torque, and durability are substantial. However, riders should carefully consider the potential drawbacks, including the cost, noise level, and fuel consumption, before making the purchase.

If you are a serious motorcycle enthusiast and are looking for a significant performance upgrade for your 2008-2012 Yamaha motorcycle, then the WSM 1800cc top end kit is an excellent choice. However, it is recommended that you consult with a professional mechanic before purchasing the kit to ensure that the installation process is performed correctly and safely. Additionally, be prepared for the increased cost, fuel consumption, and noise level that come with the enhanced performance.

Details:

Wsm top end kit 1800cc -0.25mm oversize to 86.15mm bore for 2008 - 2012 Yamaha fx1800 wave runner Fox cruiser shoe jet ski: bore: 86.15mm, sizing: 0.25mm.: brand: Wsm, model number: 16081-W344682-61. Parts without fitment are to be assumed universal and may require vehicle modification. I need to exchange an item.

This is helpful if you are buying multiple items. Piston walls are treated with a nonabrasive coating which reduces heat and friction for extended life. Compatibility: years: make: model: application: notes: 2013 - 2014 Yamahafa1800 wave runner Fox shoe, 2016 Yamahafa1800a cruiser 2016 Yamahafc1800 Soho, 2012 2013 Yamahafb1800 ho, 2009 2013 Yamahagx1800a Zs, 2014 Yamahafb1800a 2008 2011 Yamahafx1800 2014 2018 Yamahafc1800 2011 2014 Yamahavx1800k bxs, 2012 Yamahafx1800 2018 Yamahafc1800a 2017 2018 Yamahagp18 2018 Yamahafc1800b limited 2014 Yamahavx1800ak VCR, 2013 Yamahagx1800 Fr. Wsm platinum series top-end kit contains: top-end gaskets and pistons to rebuild one motor piston bore size: 86.15mm, actual contents may vary from photo, pistons are made of high strength hardened aluminum.

They are designed to prevent skirt and ring groove breakage.

specifications watercraftimp:

• for makes: Yamaha
• for years: 2008–2012
• brand: Wsm
• mpn: 16081-w344682-61

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

seller watercraftimp:

• # reviews: 76865
• city: boise, id
• rating: 99.8%

returns watercraftimp:

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

offer watercraftimp:

• price: $708.50
• item condition: New
• availability: in stock
• started: february 4, 2026
• sold #: 18
• in stock #: 1
• options: ship-to-home

shipping watercraftimp:

• class: standard
• type: fixed
• service: standard
• transit: 2-5 days

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