2003 Harley Davidson FLHTC Electra Glide Classic "40 amp fuse located 2002" Questions

...40 Amp circuit breaker under the seat. I have had breaker replaced under recall so i know it is not bad. What could be could be causing this? I had the same problem on my 2002 Electra Glide, started ...

...40 amp fuse. The breaker is affected by its location right over the rear cylinder and on hot days when the oil temp goes over 230 the breaker opens and all electric is lost. I'm told a fuse won't do ...