All:

As I'm riding along, the headlight "flickers" (it dims by 20 - 30% and returns to normal output) like it's getting enough power, then not, then getting enough, then not - it isn't a constant phenomenon, it doesn't matter if the road is smooth or bumpy, if I'm running at 3K or 8K RPM, or if my bars are turned one direction and not the other. I'm guessing it's the reason my 3 month old low beam headlight bulb went out tonight as I was riding - had to ride home with the high beams on. BTW - the high beams do the same thing (varied output that doesn't happen all the time, doesn't seem to be tied to whether or not there is a low beam bulb, whether there are bumps in the road, RPM level, or anything else that seems obvious to me). I couldn't find a thread specific to this issue, so I started a new one - please accept my apologies if I'm duplicating information already on the forum.

Based on the research I've done on this site, it appears the issue may be that the starter switch solder connection is bad / going bad. If that's the case, then what am I looking for when I pull the starter switch cover off? If it's likely not the case, where should I begin searching for the wiring gremlins? I'd appreciate any assistance or input anyone has regarding this issue. Cheers!

 

My bike is doing the same thing and I have tried the same tests that you did. Did you have any luck fixing it?

 

dscott16:

As it turns out, it was the voltage regulator - cost about $150, including the minimal time for the dealership to replace it. BTW - it ate my battery as well (luckily, it was under warranty, and the dealer replaced it without issue), so ge this checked out quickly or you'll likely be out many more dollars. Good luck!