16083-W344686-63 WSM Top End Kit Yamaha

Review WSM Top End Kit 1800cc 0.25mm Oversize To 86.15mm Bore For Yamaha for YAMAHA 2011–2014

Introducing the WSM Top End Kit 1800cc (Part Numbers: WSM 16083-W344686-63) specifically designed for Yamaha motorcycles manufactured between 2011 and 2014. This top end kit is an essential upgrade for riders seeking improved engine performance, power, and efficiency.

The kit includes all the necessary components for the cylinder head overhaul. The cylinder head features a 0.25mm overbore, which increases the engine's displacement from the standard 1755cc to an impressive 1800cc. This overbore not only enhances power output but also improves engine breathing for smoother and more consistent power delivery.

Each cylinder head comes with eight new, high-performance exhaust valves (size: 86.15mm) and matching keepers. These valves are designed with a larger diameter to optimize the exhaust flow, reducing backpressure, and increasing exhaust gas velocity for enhanced power gains. The new valves and keepers ensure a perfect seal, providing better combustion efficiency and reducing the risk of exhaust leaks.

Moreover, the WSM Top End Kit includes five new, high-performance intake valves and corresponding valve springs. These intake valves are designed to optimize the intake flow, ensuring a more efficient intake process and improved combustion efficiency. The valve springs are specifically engineered to provide the required force to the intake valves at various engine speeds for optimal performance.

Additionally, the kit includes five new pistons, five new piston rings, and five new cylinder liners. These components are precision-engineered to provide a perfect fit and ensure a proper seal between the piston and cylinder walls. The new pistons and rings offer improved engine efficiency, reducing friction and heat, while the cylinder liners help maintain the engine's overall durability.

In summary, the WSM 16083-W344686-63 Top End Kit 1800cc is an excellent upgrade for riders looking to maximize the performance of their Yamaha motorcycles manufactured between 2011 and 2014. The kit includes all the necessary components for a cylinder head overhaul, including new cylinder head, intake and exhaust valves, pistons, piston rings, and cylinder liners. With its increased displacement, optimized intake and exhaust flow, and improved combustion efficiency, this top end kit delivers enhanced power, torque, and overall performance.

Pros and Cons of buying a WSM 16083-W344686-63 Top End Kit for 2011-2014 Yamaha Motorcycles

The WSM 16083-W344686-63 Top End Kit is a popular aftermarket upgrade for the 1800cc engines found in certain Yamaha motorcycles from 2011 to 2014. This kit comes with new cylinders, pistons, rings, and other related components. In this analysis, we will discuss the key advantages and disadvantages of purchasing this top end kit, and provide a final recommendation.

1. Enhanced Performance: The upgraded components in the WSM kit can lead to improved engine performance, including increased horsepower and torque.

2. Better Fuel Efficiency: Some users report improved fuel efficiency after installing the top end kit.

3. Durability: The high-quality materials used in the kit can lead to longer engine life and reduced maintenance costs.

4. OEM Replacement: The components in the kit are designed to fit and function as replacements for the original OEM parts.

1. Cost: The WSM Top End Kit is a premium upgrade, and the cost may be a barrier for some motorcycle owners.

2. Installation Complexity: Installing the top end kit requires significant mechanical expertise and specialized tools, which may add to the overall cost and time investment.

3. Potential for Engine Damage: Improper installation or use of incorrect components can result in engine damage.

4. Lack of Warranty: The WSM Top End Kit does not come with a factory warranty, which may be a concern for some buyers.

The WSM 16083-W344686-63 Top End Kit offers significant performance benefits for 2011-2014 Yamaha motorcycles with 1800cc engines. However, the premium cost and complex installation process are important considerations. Motorcycle owners who are comfortable with DIY projects and have the necessary skills and resources may find the investment worthwhile. Alternatively, those who prefer a more turnkey solution or are concerned about the cost and installation complexity may wish to consider other options. Ultimately, the decision to purchase the WSM Top End Kit should be based on a careful evaluation of individual needs, budget, and mechanical expertise.

If you are a confident DIY mechanic with the necessary skills and resources, and you are looking to significantly enhance the performance of your 2011-2014 Yamaha motorcycle with a 1800cc engine, the WSM 16083-W344686-63 Top End Kit may be a worthwhile investment. However, if you are unsure about your mechanical abilities, or if the cost and installation complexity are concerns, it may be prudent to explore alternative options or consult with a professional mechanic before making a decision.

Details:

Wsm top end kit 1800cc -0.25mm oversize to 86.15mm bore for 2011 - 2014 Yamaha vx1800k wave runner bxs jet ski: bore: 86.15mm, sizing: 0.25mm. Parts without fitment are to be assumed universal and may require vehicle modification. They are designed to prevent skirt and ring groove breakage. Piston walls are treated with a nonabrasive coating which reduces heat and friction for extended life.

Brand: Wsm, model number: 16083-W344686-63. I need to exchange an item. This is helpful if you are buying multiple items. 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.

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.

specifications watercraftimp:

• for makes: Yamaha
• for years: 2011–2014
• brand: Wsm
• mpn: 16083-w344686-63

returns watercraftimp:

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

seller watercraftimp:

• city: boise, id
• # reviews: 76847
• rating: 99.8%

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

shipping watercraftimp:

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

offer watercraftimp:

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

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