A few weeks ago, I traded a '00XR100 for a basket case '04 YZ450F that had been sitting around a guy's garage for a while. It looked to be in decent shape and all the parts were there, so why not. It did have a little problem: Rather than try to fix the broken case, I found a complete new bottom end for $400 on eBay that was in really good shape. Using the replacement bottom end, I bolted up the motor and over the weekend stuffed it all into the frame. Turns out I was missing some oil lines, but eBay came through there as well. I gassed the bike up on Sunday. It started after about 6 kicks. Just running it up and down the street, the thing rips. No bog, idles nice and seems to have crazy power. Needs a few odds and ends like bark busters, but looks like a nice addition to the stable. Anyone need some '04 motor parts? I've got everything except a right case half.