Fitment 99-24 YZ250 and 16-24 YZ250X
Send your complete top end to have it turned into a 265 or 295cc top end. Porting and head mods are custom suited to your wants and needs. There is a detailed description in the engine packages section of the website. This service is done to order and has a 2-3 week turnaround once your topend is received. Include Service order slip and order confirmation from website in box with parts.