Not to be a smart*** but, do you know how to use a test light and a wiring diagram? KiwiRoy has some good power and ground circuit diagrams here. Do you live int the U.S, U.K, Europe, etc.... If you want to have someone talk you through a quick test procedure someone (me) can talk and get a better understanding of the problem.......
You stated I hope the bike was running when you parked it? Now you have no power?