Restore top-end performance on your Yamaha YFS200 Blaster with the Namura NA-40002-4K Top End Kit. Designed for 1988–1997 Yamaha YFS200 Blaster models, this high-compression kit includes a piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit for a comprehensive replacement solution. The 66.94 mm piston is engineered for dependable fitment and performance in compatible applications.
The Namura piston uses a hypereutectic casting process that increases silicon content to help control expansion, improve wear resistance, and withstand elevated cylinder temperatures. Its MOS2, or Teflon and molybdenum, coated skirts are applied using a rolled-on process that creates a durable bond while reducing friction, improving heat transfer, and helping minimize the risk of cold seizures. The smooth-machined head helps reflect combustion heat and limit carbon buildup, while the anodized dome improves heat resistance and durability.
This Namura top-end kit is a practical choice for rebuilding or refreshing the upper end of a Yamaha YFS200 Blaster engine. Verify the model year, bore specification, compression requirements, and engine condition before installation. Manufacturer and vendor part number: NA-40002-4K.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- 66.94 mm high-compression piston designed for compatible Yamaha YFS200 Blaster applications
- MOS2-coated piston skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk
- Smooth-machined piston heads help reflect combustion heat and reduce carbon buildup
- Anodized piston domes provide increased heat resistance and durability
- Hypereutectic casting process provides controlled expansion, wear resistance, and improved high-temperature performance
- Fits 1988–1997 Yamaha YFS200 Blaster models
Fitment:
1988 Yamaha YFS200 Blaster
1989 Yamaha YFS200 Blaster
1990 Yamaha YFS200 Blaster
1991 Yamaha YFS200 Blaster
1992 Yamaha YFS200 Blaster
1993 Yamaha YFS200 Blaster
1994 Yamaha YFS200 Blaster
1995 Yamaha YFS200 Blaster
1996 Yamaha YFS200 Blaster
1997 Yamaha YFS200 Blaster
1998 Yamaha YFS200 Blaster
1999 Yamaha YFS200 Blaster
2000 Yamaha YFS200 Blaster
2001 Yamaha YFS200 Blaster
2002 Yamaha YFS200 Blaster
2003 Yamaha YFS200 Blaster
2004 Yamaha YFS200 Blaster
2005 Yamaha YFS200 Blaster
2006 Yamaha YFS200 Blaster