After a piston meltdown and a damaged cylinder Dirt Rider used Millennium Technologies and Vertex Pistons to rebuild a 2003 YZ250 two-stroke. Test rider Ryan Orr spins the wrenches and overall looks just plain awesome. www.dirtrider.com, www.mt-llc.com, www.vertexpistons.com. Tags: features videos online exclusives 2003 yamaha yz250 2003 yz250 diy how-to mantle ryan orr tech two strokes two-stroke yamaha yz250 exclusives racing View the discussion thread.
