See if you can find where it's goin. On the horn note, make sure its hooked up. Sometimes mine gets disconnected somehow. It just has some plug on connectors. Don't know if yours is like that but worth a shot.
Check to see if you have any leaks...ride the bike for a little bit and then keep it running and look around for a leak..if not a leak it is probably something expensive.Something is definately wrong after two times...that's for sure! :idea