Y1200PWCNPGK84NPV5 NAMURA Exciter Jet Boat Pistons Top End

Review NAMURA Yamaha Exciter 270 Jet Boat Pistons Top End Gasket Kit 84mm for YAMAHA STD 1998–1999

Introducing the Namura Y1200PWCNPGK84NPV5 piston top end gasket kit for the Yamaha Exciter 270 jet boat model years 1998 and 1999. This essential replacement part ensures the continued optimal performance of your jet boat's engine.

The kit includes high-quality piston tops and gaskets that are meticulously designed to fit your Yamaha Exciter 270's engine. The piston tops are precision-machined from premium materials that deliver superior strength and durability. The gaskets, on the other hand, are engineered to provide a perfect seal between the piston tops and the engine's cylinder head.

The piston tops in this kit are designed to fit standard 84mm bores found in the Yamaha Exciter 270's engine. They are engineered to minimize compression loss and promote efficient combustion. Each piston top is equipped with a durable, heat-resistant ring set to ensure proper piston-to-cylinder contact.

The gaskets in this kit are made from a high-performance material that can withstand the rigors of high-RPM marine applications. They are designed to prevent leaks and provide an even sealing surface for the piston tops. The gaskets are also pre-cut to ensure a precise fit, minimizing the risk of installation errors.

Installing this kit is a straightforward process, making it an excellent choice for do-it-yourself boat owners or for professional mechanics. The gaskets come pre-installed on the piston tops, making the installation process quick and efficient. The kit also includes detailed instructions to guide you through the installation process.

In conclusion, the Namura Y1200PWCNPGK84NPV5 piston top end gasket kit is a must-have replacement part for the Yamaha Exciter 270 jet boat model years 1998 and 1999. It is engineered to deliver superior performance and durability, ensuring that your jet boat continues to run at its best. With its precise fit, easy installation process, and high-quality materials, this kit is an excellent investment for any Yamaha Exciter 270 owner.

Buying a Namura Y1200PWCNPGK84NPV5 Yamaha Exciter 270 jet boat pistons top end gasket kit for the years 1998 and 1999 comes with both advantages and disadvantages. Here are some potential factors to consider:

1. Improved Performance: A new piston and gasket kit can help enhance the jet boat's power output and overall performance. These components are essential for the proper functioning of the engine, and their degradation over time can lead to power loss.

2. Better Fuel Efficiency: Worn-out pistons and gaskets can cause engine inefficiencies and poor fuel economy. Replacing these parts with new ones can help improve the boat's fuel efficiency.

3. Longer Engine Life: Regular maintenance, including replacing pistons and gaskets, can prolong the life of the engine and help prevent costly repairs down the line.

4. Peace of Mind: Knowing that your engine's vital components are in good condition can provide peace of mind while using your jet boat.

1. Cost: Replacing pistons and gaskets can be an expensive repair, particularly for older models like the Yamaha Exciter 270. The cost of the kit and the labor to install it can add up.

2. Time: Installing a new piston and gasket kit can take some time, particularly if you are not doing it yourself. This could mean being without your jet boat for an extended period.

3. Complexity: Installing a new piston and gasket kit can be a complex process that requires specialized tools and knowledge. If not done correctly, it could lead to further damage to the engine.

Replacing the pistons and gaskets in your Yamaha Exciter 270 jet boat can offer several benefits, such as improved performance, better fuel efficiency, longer engine life, and peace of mind. However, it also comes with some disadvantages, including cost, time, and complexity. Ultimately, the decision to buy this kit depends on your budget, the condition of your engine, and your willingness to invest in regular maintenance. If you use your jet boat frequently or plan to keep it for a long time, it may be worth the investment. If you are on a tight budget or only use the boat occasionally, you may want to consider other maintenance options or delay the purchase until it is absolutely necessary.

If you have decided to purchase the Namura Y1200PWCNPGK84NPV5 Yamaha Exciter 270 jet boat pistons top end gasket kit, make sure to buy it from a reputable dealer to ensure the quality of the parts. Consider having a professional install the kit to minimize the risk of errors and damage. Additionally, be prepared for the cost and the potential downtime while the installation is taking place. Regularly checking and maintaining the condition of your engine's components can help prevent the need for expensive repairs down the line.

Details:

High-quality cast pistons made with excellent materials to precise specifications. High-silicon content hypereutectic cast aluminum material for less heat expansion, tighter clearances, increased hardness, longer life and reduced scuffing. Brand new Namura piston kits and top end gasket set. Made to meet or exceed oem specifications.

Features machined, smooth piston crowns for reduced carbon buildup, increased horsepower and fuel economy. Hard anodized crowns are 75% stronger than non-anodized, providing minimal expansion and reducing the chance of cold seizures when combined with Teflon/molybdenum coated skirts. Mos2 Teflon/molybdenum coated skirts perform at the highest standards, reducing friction and heat for added power longevity. Pistons are for the standard bore 84mm, actual size of pistons is 83.91mm.

Includes 3 pistons, rings, wrist pins, cir clips, and a top end gasket kit.

specifications watercraftimp:

• for models: Std
• for makes: Yamaha
• for years: 1998–1999
• brand: Namura
• mpn: Y1200pwcnpgk84npv5
• part type: Jet Gasket Piston
• engine type: 2-stroke
• oe/oem part number: 64x-11631-00-91, 65u-11631-00-00, 65u-11631-00-89
• piston size: 83.91mm
• piston material: Hypereutectic Cast Aluminum
• oe/oem part numbers: 65u-11631-01-89, 65u-11631-02-90
• country/region of manufacture: Taiwan
• cylinder bore size: Standard Bore 84mm

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

payments watercraftimp:

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

seller watercraftimp:

• # reviews: 5820
• rating: 99.3%
• city: traverse city, michigan

offer watercraftimp:

• started: may 30, 2025
• options: ship-to-home
• availability: in stock
• in stock #: 5
• prices: $54.99–$239.99
• item condition:
  • Used
  • New other (see details)
  • New
• sold #: 29

shipping watercraftimp:

• type: fixed
• service: usps ground advantage, usps priority mail, usps priority mail express
• class: standard, expedited
• transit: 3-6 days
• carrier: usps

returns watercraftimp:

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