When you changed your bars did you stretch out the wiring for the starter switch by any chance. I had a crash once and screwed up my entire front end.
after I fixed it all I went to start it and the same thing as you, it wouldnt start. Again the dash would light up, but the bike wouldnt start. I had to take apart the starter switch module and clean and reconnect the wires and connections... Try that. Otherwise I'm at a loss...