Agree it's likely the voltage regulator, but a buddy just had a funny problem with his Assault. He had changed the hand warmers because he switched bars. But when he put the new ones on, he just put them right to the bar. after a short time, unbeknownst to him, they started shorting out on the bar. Handwarmers didn't work, dash would go out, sometimes the sled would quit, sometimes it would run funny. A service guy figured it out. So, if you changed hand warmers and didn't put electrical tape under them, that might be part of the problem.