The 89 kx 250"s are hard to come by, if you can get a clean low hr bike, I say get it....Values are tough to gauge, Before I bought mine, I passed on a very clean original one for 2k....After restoring the clapped out one I bought, 2k would have been a bargain. I say between 1500-2000 is reasonable for a clean low hr bike...if it's is REALlY clean & low hr, I would expect to pay more. What to look out for: the bad: the kips powervalve parts are subject to high wear if they were not serviced at regular intervals, they start to stick and then the gear splines chip or wear out, become sloppy & can break. The kips parts are NLA, I think a machinist in euroland may be reproducing these, not cheap as expected. Cylinder was plated from the factory, not the best plating, if the cylinder still has original plating/ standard bore, this will verify low hrs, most were sleeved & bored over after cylinders were worn/ damaged. Transmission gears are pretty much NLA. The good: the forks were the best of that era. The gas tank is worth at least 300.00 to kx 500 guys, bolts right on & much slimmer that the massive 500 tank. The bike shares a lot of body parts with the kx500, which means there is still a lot of aftermarket parts availible. UFO plastic kits still availible for the bike. Footpegs, brake pedal, subframe ect, interchange with K5, this gives you slightly more parts support, but even the K5 parts are drying up. let see some photos!