Top End & Piston 66.92/+1.00 6.6:1 Yamaha YFS200 Blaster 1988-2006

Will Not Accept Oem Rings And Rings Will Not Work On Oem Piston Top End Kit Oem Style 66.92/+1.00 6.6:1 Yam Mpn: Na-40003-4k Fitment Yamaha Yfs200 Blaster 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006