The bike did not sell well, as most of the magazine gave it poor reviews, and they also liked the cheaper KDX200 better.
Stock, the bike is plagued by poor jetting and forks, it's heavy and slow steering, and the riding position is not good. Basically, Kawasaki could have sold alot more of these bikes if they had cleaned up the jetting and got the forks in the ball park.
On the plus side, all the problems but the weight can be fixed. You can usually find them cheap, and once dialed in they make a fine and reliable trail bike. The bike has a heavy flywheel and excellent low end power for a 250 2t. It also has a big tank (mine measured 3.6 gallons, even though Kawasaki says 3.2 or 3.3). For mountains, the extra power over the KDX200 is much appreciated.
I had one for several years, and liked it better than my dialed in '90 KDX200, but there was a lot of attention to detail needed getting the 250 set up right. If you search the KDX forum, you can find much more info.