I have no low beam on my gsx600r headlight.Tried every thing,bulbs ok,fuse ok,stripped switch down and cleaned up.No voltage though from swith to both headlight connectors.Any ideas as I am slowly running out of patience.
It may sound bovious, but check the connector coming from your main wiring harness. When I was putting my bike together, I forgot to connect and ran into the same problem (Both high and low beams didnt work with no juice to the sockets.)
I remember reading on here that someone had prob's with there lights and it was in the ignition button assembly on the bars. When you start the bike the light goes out to give the motor more juice........ just a thought, try a search on here if you haven't yet.