Well I'll try to share as much as I know about 94's, although I must admit I've never owned one and have limited knowledge of this era of KX250's. First off, the 94 brings a new frame and plastic set, much different in design than the90-91's and 92-93's, which in my opinion have a more dated look to them (yes I own a 91'). The motor from what I've heard hasn't changed much, correct me if I'm wrong but I believe the KX250's had the same cylinder from 1990 err 1989 to 1995, 1996 is when the new cylinder came in, but I could be wrong. I haven't heard anything extremely good or extremely bad about the bike, which is a safe bet. The same plastics were continued up until the 1999 KX125's n' 250's came to dealer's floors. That's it, I hope IO helped, I KNOW someone else can tell you a lot more about yoru bike than I can. Have fun!