BIG BORE MOTOR REBUILD FROM THE BEST! CALL TO PLACE AN ORDER OR WITH TECH QUESTIONS! FITS ALL YAMAHA YFZ450 CARB MODEL YEARS AND MODELS! NEW nikasil plated 98mm cylinder.12:1 Wiseco CP or JE forged piston. Hotrods HD crank with rod. Complete gasket kit - head base case covers pump covers. Complete crankcase oil seal kit. Installation and break in instructions.
This is a bolt on kit with no machining required. Piston uses pump or race gas.Everything is new in the original packaging. We recommend that this be installed by a qualified mechanic with experience doing this type of work. Piston comes with specific instructions for setting ring gap. If you do not follow these your motor will fail. The item "YFZ450 YFZ 450 Motor Rebuild Complete Rebuilt Big Bore Kit Crank Cylinder Piston" is in sale since Wednesday, December 13, 2017. 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.