Engine Rebuild Kit PWR140-101 - 77.00 mm - Yamaha YZ250F 2005-2007

Kit includes a premium forged piston kit with stock compression ratio and a high-quality cam chain. Top and bottom end components are included for a complete engine rebuild. Crankshaft and rod assembly designed and inspected to assure durability. Main bearings, seals, gaskets, a Wiseco hour meter and bracket are also included in the kit.