Yamaha WR250F Engines / Parts

Yamaha WR250F Engine Replacement Parts

Wiseco has some fantastic parts for your WR250F engine. Their Pro Lite Piston Kit has been produced using Aerospace-grade alloy, giving it excellent strength with a decent weight. It has been precisely CNC machined for the best shape and profile for peak horsepower, and has a premium top-end needle bearing for added strength and decreased friction. The kit comes with pistons, a high-performance ring set, circlips, and a high-quality alloy wrist pin.

Wiseco also has a Complete Bottom End Rebuild Kit, making it easy to complete your own rebuild. This kit comes with a crankshaft and connecting rod, all of the bearings that you will need, and a complete bottom end gasket kit. All of these parts have been produced so that they meet or exceed all OEM specifications and performance. The connecting rod has been double forged from a dedicated forging. It features shot peening, oil slots, and coated bronze thrust washers. The bottom end gasket kit has been manufactured using only the best materials, providing an outstanding seal. The main bearings have been case hardened for extended life and a smooth operation at high RPM speeds.


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