I was going to go on a ride yesterday and stopped at the gas station to fill up. I filled up and the bike did not start. There was no power what so ever. I tried to jump start it (with another bike) and it started fine, then as soon as the jump[er cables were undone the bike died. I think it's the battery but am a bit in aw that it showed no sign of wear or that it was dying. literally the bike started fine when I warmed it up I got gas and then would not start! any ideas?