16091-W344702-71 WSM Top End Kit GP1800 Yamaha

Review WSM Top End Kit 0.25mm To 86.15mm Bore For Yamaha for YAMAHA GP1800 2017–2018

Introducing the WSM Top End Kit 1800cc for the 2017-2018 Yamaha GP1800, a high-performance upgrade designed to enhance the power and efficiency of your watercraft engine. This top end kit is an essential upgrade for those seeking to maximize the potential of their Yamaha GP1800.

The WSM Top End Kit includes seven crucial components, all meticulously crafted to deliver superior power and durability. The kit consists of a pair of cylinder heads, a pair of camshafts, a pair of intake manifolds, a pair of exhaust manifolds, and a pair of spark plugs. Each component is engineered to precise specifications, ensuring a perfect fit and seamless integration with your existing engine.

The cylinder heads in this kit boast a 0.25mm overbore, allowing for increased displacement and superior combustion efficiency. The camshafts are designed to provide improved lift and duration, optimizing power delivery throughout the rev range. The intake and exhaust manifolds have been engineered to provide improved flow and scavenging, ensuring optimal engine performance.

The WSM Top End Kit also includes a set of high-performance spark plugs, designed to deliver reliable ignition and consistent power output. These plugs have been specifically engineered for use in high-performance applications, ensuring optimal performance and longevity.

Installing the WSM Top End Kit is a straightforward process, requiring only basic mechanical skills and common tools. The kit includes comprehensive installation instructions, along with all necessary hardware, to ensure a hassle-free installation experience.

In summary, the WSM Top End Kit 1800cc for the 2017-2018 Yamaha GP1800 is a high-performance upgrade designed to deliver increased power, improved efficiency, and enhanced reliability. With meticulously engineered components, this kit is the perfect choice for those seeking to maximize the potential of their watercraft engine.

Pros and Cons of buying a WSM 1800cc Top End Kit for 2017-2018 Yamaha GP1800

a. Enhanced Performance: This top end kit is designed to provide improved horsepower and torque, resulting in better acceleration and overall performance for your Yamaha GP1800 watercraft.

b. High-Quality Materials: WSM's top end kit is manufactured using 0.25mm 86.15mm cylinders and other premium materials, ensuring durability and reliability, allowing you to enjoy your watercraft for longer periods.

c. Easy Installation: The kit comes with comprehensive installation instructions, making it easier for you to install the parts yourself, saving you money on labor costs.

a. Cost: The WSM 1800cc top end kit is a premium upgrade for your watercraft. The investment required may be significant, but the potential performance gains may justify the expense for some enthusiasts.

b. Potential Compatibility Issues: Always double-check the compatibility of the kit with your specific model year and any modifications you may have made to your watercraft. Incorrect installation or use of incompatible parts may lead to issues.

The WSM 1800cc top end kit offers significant performance gains for your 2017-2018 Yamaha GP1800 watercraft, making it an attractive option for those looking to enhance their riding experience. However, the investment required should be carefully considered against the potential benefits and the compatibility with your specific watercraft model.

Before making a decision, assess your current watercraft's performance and consider whether the potential gains from the WSM 1800cc top end kit justify the cost. Additionally, ensure compatibility with your model year and any modifications you may have made before making the purchase. If you decide to proceed, follow the installation instructions carefully to ensure a successful installation and enjoy the improved performance on the water.

Details:

I need to exchange an item. 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. 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. Wsm top end kit 1800cc 0.25mm to 86.15mm bore for 2017 - 2018 Yamaha GP1800: bore: 86.15mm, sizing: oversize. 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.: brand: Wsm, model number: 16091-W344702-71.

This is helpful if you are buying multiple items.

specifications watercraftimp:

• for models: Gp1800
• for makes: Yamaha
• for years: 2017–2018
• brand: Wsm
• mpn: 16091-w344702-71

shipping watercraftimp:

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

payments watercraftimp:

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

offer watercraftimp:

• availability: in stock
• price: $708.50
• item condition: New
• started: june 3, 2026
• options: ship-to-home
• sold #: 16
• in stock #: 1

seller watercraftimp:

• city: boise, id
• rating: 99.9%
• # reviews: 86456

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

returns watercraftimp:

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