I've got a total system shut down (engine and instrument cluster indicators) when I engage the hand brake or if I lean the bike to one side or the other. In fact, even if the engine is not on and the key is not even in the ignition...when I straddle the bike and lean it to one side or the other, the clock goes off. When I bring the bike back to vertical, the clock slowly fades back on.

This first started happening right after I cleaned the wire contacts for the brake light - the contact going into the rear brake light assembly and the one connecting to the hand brake.

Any help would be helpful. Thanks so much!

Rob
1985 K100RS

Just sounds like a dodgy earth connection to me. Have a look at the main frame earth, and there is another one underneath the tank just forward of the relay box. Something must be a bit loose, I can't see how you have done any damage with your cleaning, but have been wrong before.
RT

I'd +1 on RT there and check to see if the battery is moving about.

So...a year plus later...after other priorities taking place of my K100...I finally took the bike to a motorcycle mechanic buddy of mine. He found that the ignition switch needed some serious cleaning...not maintaining good contact. He gave it a good service and the problem has not returned. Now onto other K100 issues that have popped up...which I will post with another title.