Join Date: Mar 2010
Location: Western North Carolina
Motorcycle: GSXR 750K6, 2007 Kawasaki Z1000, Aprilia SXV550, DR650
Re: Problems with brights?
Do you get the same symptoms when you press the passing switch?
If the headlight works OK with the passing switch then your problem is in the hi/lo switch.
If it does the same thing then you have a high resistance in the power side of the high beam circuit. (All the front lights share the same ground so that should be good and the high beam indicator is on a separate ground but is acting the same as the high beam.
My guess is that you have a bad connection in the big plug at the front of the bike. The one with the clear/white rubber cover. According to the service manual wiring diagram, the high beam power wire in is Yellow and out to the headlight and indicator is Blue/Yellow. I would check for a voltage drop across that connection.