Yamaha YSR50 Big Bore Top End Rebuild Kit Wiseco Piston Cometic Gaskets

  
87-92 YAMAHA YSR50 TOP END BIG BORE REBUILD KIT 44mm. This is a Big Bore Top End Rebuild Kit for the Yamaha YSR50. You will Need to Bore OEM Cylinder to Size to use this kit. You Can Send your Cylinder to me to Bore if Needed.

Wiseco 44mm Piston Kit (Rings, Pin, Clips). I Will Have a Crank Set Up Soon.