Athena 08-13 Yamaha WR 250 R/X 290cc 83mm Big Bore Cylinder Gasket Kit

If you're installing Athena's 290cc big bore cylinder kit on your 08-13 Yamaha WR 250 R or WR 250X, this gasket kit is what you'll need to get everything sealed up right. This set includes all the necessary gaskets to properly mount the larger cylinder, ensuring a leak-free seal for your engine's improved performance.

Athena builds these gaskets with materials that resist moisture absorption, keeping them from swelling or degrading over time. They're also made to handle the higher mechanical stresses, oils, and gasoline found in a modified engine, plus they can stand up to the increased temperatures and pressures that come with a bigger displacement. When it's time for service down the road, these gaskets are designed for easier removal compared to some others, which can save you time and hassle.