Wiseco 05-07 Yamaha YZ250F Garage Buddy 12.51 CR Crankshaft

Starting with a 12.5:1 compression ratio forged piston kit, this Wiseco Garage Buddy kit is designed to give your 2005-2007 Yamaha YZ250F a complete engine overhaul. The kit centers around a robust crankshaft assembly featuring precision-machined crank webs for maximum strength. The connecting rod itself is copper-plated, heat-treated, and shot-peened to reduce internal stress and create a smoother surface finish, which helps with durability and performance.

This isn't just a few parts; it's a comprehensive solution for a full engine rebuild. You get all the top and bottom-end components needed, including OEM-quality main bearings, a small-end bearing for the connecting rod, and complete gasket and seal kits for both the top and bottom ends. Wiseco also includes a forged piston kit with rings, wrist pin, and circlips, ensuring you have everything to get your engine running like new again.

To help you keep track of your engine's performance and maintenance schedule, Wiseco throws in a free hour meter and bracket. This kit is covered by a 90-day/10-hour limited warranty against manufacturer defects, giving you confidence in your rebuild. Please note that this kit is not CARB approved and cannot be shipped to California.