fits model: Js, Sx, 300. make: Kawasaki. year: 1986-91.

( Brand: Namura Technologies ), ( Manufacturer Part Number: NW-20000-2K )
The Namura NW-20000-2K Top End Repair Kit is an essential solution for Kawasaki JS SX 300 motorcycles manufactured between 1986 and 1991 with a 76.5mm bore size. This comprehensive repair kit is designed to provide riders with high-quality parts to efficiently and effectively restore the top end of their engines.
The kit includes eleven critical components. Firstly, there are two cylinders, which are precision-crafted using advanced materials for superior heat dissipation and durability. These cylinders come equipped with the correct diameter bore and thickness to ensure a perfect fit on your Kawasaki engine.
Two pistons, which are specifically designed for the JS SX 300 motorcycles, are also included in the kit. These pistons combine strength and lightweight features necessary for optimal engine performance. Each piston features a skirt, ring grooves, and piston pin boss that have been engineered to exactly match the OEM components.
Additionally, there are two chromed iron cylinder sleeves, two piston rings, and a set of 2 exhaust valves. The chromed iron cylinder sleeves ensure a tight seal between the cylinder and the engine block. These sleeves offer excellent durability and resistance to thermal shock.
The two exhaust valves are also precisely engineered to match the original Kawasaki valves. They feature the correct shape, size, and material specifications for optimal engine performance and longevity. The valve seats are ground for a perfect fit, ensuring sealing efficiency and reduces the need for additional modifications.
Furthermore, the repair kit includes three piston rings, with two compression rings and one oil control ring. These rings are engineered to provide a perfect seal within the cylinder bore and deliver excellent combustion efficiency and oil control.
Lastly, the kit also contains a pair of new piston pin carrier bushings. These bushings ensure that the piston pin functions smoothly and effectively within the piston, thereby optimizing power transfer and engine performance.
In summary, the Namura NW-20000-2K Top End Repair Kit for Kawasaki JS SX 300 motorcycles offers a complete set of high-quality top end components designed to enhance engine performance, durability, and longevity. You can trust that these parts will fit precisely, work efficiently, and provide the performance that your engine needs.
The Namura NW-20000-2K top end repair kit is designed for repairing the 76.5mm piston engines found in Kawasaki JS SX 300 motorcycles produced between 1986 and 1991. Before deciding whether to purchase this repair kit, it's essential to weigh its pros and cons.
Pros:1. Comprehensive: This kit includes all the necessary components for a top-end rebuild, such as pistons, rings, gasket sets, and other essential hardware.
2. OEM quality: Namura is a well-known and respected supplier of aftermarket motorcycle parts. The kit's OEM quality ensures a perfect fit and reliable performance.
3. Cost-effective: Buying a repair kit as opposed to purchasing individual replacement parts saves time and, in most cases, money.
4. Suitable for DIY enthusiasts: This kit is an excellent option for motorcycle owners who enjoy working on their bikes themselves.
5. Improved performance: A top-end rebuild using this kit can lead to enhanced engine efficiency and overall performance.
Cons:1. Cost: The price of the repair kit may seem high at first. However, consider the long-term savings through avoiding potential future engine issues.
2. Requires mechanical skill: Instituting a top-end rebuild without the appropriate experience can lead to complications. For those unfamiliar with the process, it might be best to hire a professional mechanic.
3. Time-consuming: Top-end rebuilds are no quick fix, often requiring several hours to complete, depending on one's mechanical abilities.
4. May not cover all issues: In cases where there are underlying engine issues beyond the top end, the repair kit might not address these problems entirely.
Conclusion:A Namura NW-20000-2K top-end repair kit offers significant benefits, including comprehensive coverage, OEM quality, and potential cost savings. However, it also comes with some challenges, including a substantial upfront cost and the requirement for mechanical skill. Weighing the pros and cons carefully, this kit is an ideal choice for experienced DIYers seeking to improve their engine's performance while saving money in the long run. Novice mechanics and those with limited time or resources might want to consider alternative solutions, such as hiring a professional mechanic or purchasing a remanufactured engine.
Piston dome is anodized for superior heat resistance and longer lifespan. Manufactured by Namura. Kit is for .020 over bore size - 76.50mm. Namura gaskets use performance materials to increase durability and provide greater reliability.
Compatible with Kawasaki model's below: 1986 300. Kit includes piston, rings, pin, clips, bearing top end gasket kit you get exactly what is pictured. Includes all gaskets pictured to rebuild top end. Piston skirts are Molybdenum Teflon coated to minimize resistance/wear and provide extended life.
Made in Taiwan.