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Published on Sep 18, 2011
1994 YZ 250 Wins a drag race against a 2007 YFZ 450. Yfz 450 mods: hmf full exhaust...header and silencer, airbox lid, and cotton K&n style filter. 180 lb rider. Yz 250 mods: boyesen reeds and cage, fmf fatty gold series pipe, fmf power core 2 silencer. 310 lb rider Both machines have stock bore, stroke, and engine internals, aside from a wiseco piston in the yz 250. In case it's difficult to see what happens because of the lack of zoom, the quad jumps a full length off of the line and from there on the bike pulls away hard (even with a rider over 100 lbs heavier). the bike let off at the end hundreds of feet from where the camera is because they were both topped out and the bike rider wanted to give the camera some sign language..If you listen to the sound of the bike, it let off LONG before it got to the camera..only then did the quad catch up and pass