I believe the 05 has the 35 or 40 amp breaker which has a history of going bad and shutting down the entire bikes electrical system.
When the breaker starts to go bad it will overheat and the breaker kicks in shutting down the system, the breaker will reset itself when it cools.
This is a common problem and replacing the breaker is the fix, many people replace the breaker with a 40 amp master fuse.
This is just one possible cause for you to check because there is many things that can cause electrical issues. Make sure to check all the ground connections too.
You voltage regulator will not cause the problem you have.
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08 FLTR candy red sunglo,with 2015 103 HO, V&H Dresser Duals with Monster Rounds, Power Vision tuner, Willy Shiny Wheels and Forks and a bunch of other stuff.
Last edited by ironmark; 01-10-2015 at 10:45 AM.