Description
NA-40006K Top End Kit 83/Std 11:1 Yam
Revitalize your engine’s performance with the NA-40006K Top End Kit designed for Yamaha enthusiasts. This comprehensive kit not only optimizes your engine’s functionality but also enhances durability, ensuring you experience the ultimate ride every time.
Outstanding Features:
- Complete Top End Kit: Includes everything you need for a total engine overhaul: piston, rings, wrist pin, clips, top end bearing, and a complete gasket kit.
- MOS2 Coating: The advanced Teflon/Molybdenum coated skirts are applied using a rolled-on method, creating a bond that is 10 times stronger than traditional spray coatings. This reduces friction, increases heat transfer, and aids in preventing cold seizures.
- Machined Smooth Heads: Engineered to reflect combustion heat and minimize carbon buildup, these heads not only protect the piston but can also boost horsepower and improve fuel economy by up to 6%.
- Anodized Domes: Crafted for increased heat resistance and durability, these pistons are 75% stronger than their non-anodized counterparts, ensuring long-lasting performance.
- Hypereutectic Casting Process: This innovative process enhances wear resistance and minimizes expansion rates, allowing the pistons to withstand higher cylinder temperatures for superior engine reliability.
Why Choose the NA-40006K Top End Kit?
This top end kit is meticulously designed to maximize your engine’s efficiency and longevity. Whether you’re racing or enjoying a leisurely ride, experience the difference in performance and reliability with every mile. Upgrade to the NA-40006K Top End Kit and unleash your Yamaha’s true potential!






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