FITS ALL YAMAHA YFZ450 CARB MODELS AND YEARS! CP JE or Wiseco forged 12.5:1 piston. Hotrods +3mm crank with rod. Water pump bearing (seal in seal kit). Complete crankcase oil seal kit.No mods of any kind are required to use this kit and piston runs on pump or race gas. We ALWAYS recommend that this be installed by a qualified mechanic with experience doing this type of work. This kit will come with specific instructions. If you do not follow them exactly your motor will fail. Piston comes with specific instructions for setting ring gap.
Failure to follow these exactly will result in motor failure. The item "YFZ450 YFZ 450 500cc Big Bore Stroker Crank Cases Complete Rebuild Kit Hotrods" is in sale since Wednesday, February 6, 2019. This item is in the category "eBay Motors\Parts & Accessories\ATV, Side-by-Side & UTV Parts & Accessories\Engines & Components".
The seller is "bpracingatv" and is located in Upland, California. This item can be shipped worldwide.