I have a 2016 Classic that has done this to me 3 times now. The first time Inhad ran out of fuel, switched to the other tank, disengaged the blades and it would not restart. I went and looked at my manual but could find no help, 15 to 30 minutes elapsed and when I got back on the machine, it stated and ran fine. The second time was about 2 months later, (two weeks ago), I had stopped my machine after just starting to mow and when I got back on it, it would not start, again after 15 minutes or so, it started and ran fine until it ran out of fuel. I again switched my tank as I have always done, disengaged my blades and attempted to start my machine. This time (#3), it would not start, I had to load it onto a trailer and take it to my dealer, it still would not start the next morning and was lifted off the trailer via fork lift. Then the machine started normally and would not duplicate the failure. I now have my machine at home but am looking for help in solving this mystery.