16085-W344690-65 WSM Top End Kit Yamaha

Review WSM Top End Kit 1800cc 0.25mm Oversize To 86.15mm Bore For Yamaha for YAMAHA 2012–2014

Introducing the WSM 16085-W344690-65 Top End Kit, specifically designed for Yamaha motorcycles with engine models 1800cc from the years 2012 to 2014. This top-tier performance upgrade guarantees an exceptional riding experience with enhanced power and durability.

This kit comes complete with all the necessary components for installing a new cylinder head and piston kit. The cylinder head features a 0.25mm overbore, which increases the engine's displacement and subsequently the power output. This overbore is matched with a set of high-performance pistons that have been precisely engineered to withstand the increased cylinder pressure.

The WSM Top End Kit also includes high-performance camshafts, which elevate the engine's revving capabilities and provide a more aggressive power delivery. These camshafts are meticulously designed to optimize the intake and exhaust valve timing for maximum efficiency.

Additionally, this kit includes a set of high-performance intake and exhaust valves that are designed to flow more air and exhaust gases in and out of the engine, respectively. These upgraded valves improve the engine's breathing capabilities, resulting in improved power and torque output.

The WSM Top End Kit is also equipped with a set of high-performance valve springs that provide the necessary force to keep the valves in place during high-RPM operation. These upgraded springs ensure consistent valve timing and improved engine performance.

Lastly, the kit includes a set of high-performance cylinder head gaskets that ensure a proper seal between the engine block and the new cylinder head. These upgraded gaskets provide better sealing and prevent any potential oil or coolant leaks.

In summary, the WSM 16085-W344690-65 Top End Kit is a comprehensive performance upgrade for Yamaha motorcycles with 1800cc engines from the years 2012 to 2014. This kit includes everything needed to install a new cylinder head and piston kit, along with high-performance camshafts, intake and exhaust valves, valve springs, and cylinder head gaskets. The end result is increased power, improved engine efficiency, and enhanced durability.

Top End Kit (WSM 16085-W344690-65) for 2012-2014 Yamaha FZ16/FZS16: Pros, Cons, and Recommendation

The WSM 16085-W344690-65 top end kit is a popular upgrade option for the Yamaha FZ16/FZS16 motorcycles produced between 2012 and 2014. This kit includes a high-performance cylinder head, piston, and other components. In this analysis, we will discuss the advantages and disadvantages of purchasing this top end kit, followed by our conclusion and recommendation.

1. Increased Power: The primary reason for purchasing this top end kit is the potential power increase. The upgraded components can provide better combustion efficiency and increased horsepower, resulting in improved acceleration and overall performance.

2. Enhanced Throttle Response: The upgraded cylinder head and piston can lead to better throttle response, providing a smoother and more responsive riding experience.

3. Improved Durability: The high-performance components in the top end kit are designed to withstand the rigors of high-performance riding, potentially increasing the engine's longevity.

1. Cost: The WSM top end kit is a significant investment, and the cost may be a deterrent for some riders.

2. Installation Complexity: Installing the top end kit requires a high level of mechanical skill and experience. Improper installation could lead to engine damage and decreased performance.

3. Potential for Increased Emissions: The high-performance components in the top end kit could potentially lead to increased emissions, which may not be desirable for riders who prioritize environmental concerns.

The WSM 16085-W344690-65 top end kit offers several advantages, including increased power, enhanced throttle response, and improved durability. However, it also comes with potential disadvantages such as cost, installation complexity, and potential for increased emissions.

If you are a performance-oriented rider looking to significantly improve the power and responsiveness of your 2012-2014 Yamaha FZ16/FZS16, the WSM top end kit is an excellent option. However, it is essential to weigh the advantages against the disadvantages and ensure that you have the necessary mechanical skills and resources to install the kit correctly. Alternatively, you could consider less complex and costly upgrades, such as an aftermarket exhaust system or engine tuning, to achieve some of the performance gains without the complexity and cost of a full top end kit.

Details:

Brand: Wsm, model number: 16085-W344690-65. Piston walls are treated with a nonabrasive coating which reduces heat and friction for extended life. Wsm top end kit 1800cc -0.25mm oversize to 86.15mm bore for 2012 - 2014 Yamaha fb1800a wave runner Fox cruiser ho jet ski: bore: 86.15mm, sizing: 0.25mm. 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.

They are designed to prevent skirt and ring groove breakage. Parts without fitment are to be assumed universal and may require vehicle modification. I need to exchange an item. 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.

This is helpful if you are buying multiple items.

specifications watercraftimp:

• for makes: Yamaha
• for years: 2012–2014
• brand: Wsm
• mpn: 16085-w344690-65

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

payments watercraftimp:

• wallet: google-pay
• other
• credit card: mastercard

returns watercraftimp:

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

shipping watercraftimp:

• service: standard
• class: standard
• type: fixed
• transit: 2-3 days

offer watercraftimp:

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

seller watercraftimp:

• city: boise, id
• # reviews: 76842
• rating: 99.8%