To everyone with a shay that doesn't run well. Mine started smoking last week and I quickly shut it down. I opened it up and several of the assorted metal power strips had shorted and fused with the plastic parts. I ordered replacements from Atlas and soldered them in today. It had been running poorly and the drive shafts had been binding. With the new parts and good connections it works like new, including the drive line. It makes me wonder if the problems with the drive shaft binding that many report is nothing more than insufficient power to one of the trucks. Just a thought.