Ok, I picked up my 04 WR450 on Friday. What follows is my *very* brief eval. All opinions are mine and mine alone. If you don't agree, fine. My previous ride (and I still have it) is an '01 YZ426F. It will be referred to forthwith as the YZ. The 04 WR450F will be referred to as the WR. After trying to start it on Friday night with little luck, I tried again on Saturday morning. After the all to familiar pops and sputters, I realized that it likely had a fouled plug. I attribute this to looky-loo right hands as the bike sat on the showroom floor for about a week while the previous potential owner decided if he wanted to buy or not. Anyway, after installing a fresh plug, it fired up with the use of the kickstarter. The bike has had the snorkel removed, grey wire cut and throttle stop fixed. Yesterday, I took both the WR and the YZ to the local MX track. After the required breakin time, I took the WR out to wring it out a little. I have a total of 16 miles on the bike. Here's what I thought: 1) It's underpowered as is, compared to the YZ. This might be a blessing for trail work. I think opening up the airbox with some well placed 1" holes will help. Time will tell. I don't expect bikes to perform at their optimum out of the box. I always have the YZ cam option so I'm not worried. 2) It jumps as well as the YZ. 3) The tank/seat junction is FLAT! I jumped forward as far as I could at one point to make a turn and pounded the boyz into the gas cap. 4) It seemed to turn just as well as the YZ. 5) The bars seem a little weird to me. I have PT's on the YZ and that's probably the difference. 6) Shifting and clutch work is a notch above the YZ. 7) The suspension seems to work really well. It's impossible to tell with this few miles on the bike though. I've been impressed with other WR's suspension though. I have high hopes for the future, once it's broken in. 8) It doesn't start worth a crap when cold with the button. 9) The jetting seemed to be close. I don't even know what jetting is in the bike. I was told it was still stock, but am not 100% sure. If it is, I'm sure it can be improved as I live at 6000 feet. All in all, I think it's going to be a good race bike. I have to get it dialed in for my riding style. Mods coming include PT's, setup for my Scott's, handguards, and a skid plate. Examining the underside of my YZ revealed that a skid plate is needed.