I have a 2007 Softail Custom that has been acting up. At times, while riding, I lose all electrical power. Spedo goes to 0, everthing shuts down for a couple seconds and then powers back up. Just before putting it away for the winter, I took it to the gas station to fuel up and add the fuel additive. As I pulled away from the pumps, the bike stalled and once again no power at all. No lights, no security light, nothing. I waiting for about 5-10 minutes and finally the security light popped up. I turned on the ignition and the bike started. Not sure where to go from here. I've checked all wiring and ground connections. Any ideas???