The Namura NA-40002-2 High-Compression Piston Kit is designed for select Yamaha YFS200 Blaster two-stroke engines from 1988 through 1997. This replacement piston kit features a 66.44 mm piston size, equivalent to a +0.50 mm oversize application, and is intended for engines requiring the corresponding oversize piston specification. The kit is manufactured by Namura and is supplied under vendor part number NA-40002-2.
Fitment: Fits 1988–1997 Yamaha YFS200 Blaster models. Verify the existing cylinder bore, piston clearance, and engine specifications before installation to confirm proper application. This piston kit will not accept OEM piston rings, and the included or specified rings are not compatible with an OEM piston. Use the correct Namura replacement rings matched to this piston kit.
Designed for use in performance and engine rebuild applications, the Namura high-compression piston helps provide a reliable replacement for a worn or damaged piston when the cylinder has been prepared for the applicable oversize. Professional installation is recommended, including measurement of the cylinder and piston, verification of ring end gap, and compliance with the engine manufacturer’s assembly procedures. Brand: Namura. Manufacturer: Namura. Vendor part number: NA-40002-2.
Features:
- Size: 66.44 mm piston, equivalent to a +0.50 mm oversize application
- Model: High-compression piston kit for Yamaha YFS200 Blaster
- Brand: Namura
- Manufacturer: Namura
- Vendor Part Number: NA-40002-2
- Fitment: 1988–1997 Yamaha YFS200 Blaster
- Compatibility: Will not accept OEM rings, and the rings are not compatible with an OEM piston
- Application: Intended for cylinder rebuilds requiring the specified oversize piston
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