Hey guys, thanks for all the wonderful information about the KX500. I purchased an '89 KX500 in July '04. I have ridden this bike once. I thereafter pulled the top end and found the cylinder was sleeved and bored 2mm. End of the line for this cylinder. I need a new or good used non sleeved cylinder. The best price for a new one I have found is $395 + shipping @ midwest action cycle. If anyone knows of a better deal please let me know. Thank You