Well, today while adjusting the blade tracking there was a little puff of smoke from the 3 in 1.little to say the tail motor wont run.If I plug the tail motor into the main motor lead the tail will spin. There must have been major melt down the tail boom was even alittle warm. I gotta say I am so frustrated with this heli stuff I think it might be smart to walk away for a while,Maybe if I can a day or two