Refresh the top end of your Yamaha YFS200 Blaster with the NAMURA OEM-style Top End Kit, manufacturer part number NA-40003K. Designed for a standard-bore 65.92 mm piston and 6.6:1 compression ratio, this complete kit includes the piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit needed for a comprehensive top-end rebuild.
The NAMURA piston features MOS2, or Teflon/molybdenum, coated skirts applied through a rolled-on process for a strong, durable bond. This coating helps reduce friction, improve heat transfer, and minimize the risk of cold seizures. The machined smooth head reflects combustion heat and helps reduce carbon buildup, while the anodized dome improves heat resistance and durability. NAMURA’s hypereutectic casting process adds silicon for controlled expansion, increased wear resistance, and dependable performance under elevated cylinder temperatures.
This top-end kit fits Yamaha YFS200 Blaster models from 1988 through 1997. It is intended for standard-bore applications and is suitable for replacing worn or damaged top-end components while maintaining the original engine configuration. Verify the model year, bore specification, and engine condition before installation. The kit is supplied under NAMURA vendor part number NA-40003K and is designed specifically for the listed Yamaha Blaster fitment.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- Standard-bore 65.92 mm piston with a 6.6:1 compression ratio
- MOS2 Teflon/molybdenum-coated skirt helps reduce friction, improve heat transfer, and minimize cold-seizure risk
- Machined smooth piston head reflects combustion heat and helps reduce carbon buildup
- Anodized dome improves heat resistance and piston durability
- Hypereutectic casting process provides controlled expansion and increased wear resistance
- Fits 1988–1997 Yamaha YFS200 Blaster models
- Brand: NAMURA
- Manufacturer and vendor part number: NA-40003K
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