Welcome to the forum! Yes, they'll go 100K miles easily, I have 101K miles. I hope you get you're electrical issues sorted out. Speaking of, these bikes are known to have stators that fail prematurely, a volt meter will let you monitor your charging system. Also headlights are also known to fail due to excessive voltage running through the starter switch, the fix for this (before it happens) is a headlight relay available through Eastern Beaver. Other than that they'll run forever with basic maintenance.