I'm going to look at a YZ400F on saturday this weekend. My current bike is a 95 KDX200 and I'm really interested in the yz400. Was this a good year or were there some bugs with it being the first year? Also is this bike going to be too much for me, I'm 5'10", 165lbs and can pretty much throw around my KDX now pretty good and am looking to take a step up from the KDX. I'm not really sure of some of the things I should look into while looking at the bike? What kinds of things should I check with the bike? Any common problems that the 98 YZ400's had? Also, I'm concerned about the reliability part of the bike. Are the YZ400F's pretty good on reliability? I understand it's more of a MX type four stroke and is going to require regular maintainence, but do they hold up pretty well? Also, the guy is asking $3450 for the bike, does this sound reasonable? Any suggestions or tips anyone could give me ahead of time would be a big help. I want to make sure the bike has been taken care of and maintained properly before dropping that much money on it. Thanks in advance for any help.