Peggy
I would check the battery terminals, it sounds like they may be either loose or dirty as in bad connection. Remove both cables and wire brush the battery terminal and the cable end. Don't forget that the cables have two ends either, do them both. Check the ground side of the battery cable on the frame/motor and be sure it's clean and tight. If that doesn't do it, check the main breaker, there was a few bad ones floating around back in 2000.