I have a 2001 FLHT that loses all electrical for just a split second and comes back on. Doesn't matter if stopped or at speeds. I have changed the main circuit breaker and the ignition switch. It is very random sometimes goes 50 miles without it happening and other times will do it 4 times in a mile. Any ideas would be great

 

I had this happening with my 2000 Fatboy. Changed out the battery and it stopped, after swapping out the ignition switch and checking out every damn thing in the system. I was getting good readings, and load testing from the battery I had too. Someone said plates or posts were breaking apart inside. All I know is, ever since I swapped it out, no more problem.