Just an update here. I've been checking out the other forums here and everyone who buys or rides the Yamaha four strokes seems to like them very well. Well, the KTM guys don't like the Yamaha's too much, but everyone has their own opinion. I was going to check out the KTM, but man, I think it may get difficult to to get parts. I think I'm going to go with the WR400 or 426. I like it because it's milder than the YZF and I can always retime the cams to YZ specs. I don't really like the fact that it has a throttle limiter on it, but it's an easy fix. I feel it shouldn't have to be a FIX, but someone at Yamaha thought it was a good idea. Oh, well. Next question is should I get a new one or try to save some $$ and get a used one? Are there any problems I should look for in the WR? I have experience with quads but not bikes. Totally different animal I'm dealing with here. I've told lots of people about this site. Maybe four stroke quads should be here too. Quad racing is moving toward 4 strokes also. Just a thought. Thanks for all the responses.