OK, I am officially frustrated with my 1990 K75RT! While in PA my headlight quit working. Replaced the bulb (H4 Halogen55/60 watt) and still nothing. Checked the High beam switch, cleaned with contact cleaner. Nothing. Pulled the tank, checked, cleaned and greased all the connections. Still nothing. Cleaned greased and reattached all the ground contacts I could find. Still no low or high beam. Got a new H4 connector and wired a switched power source off the power let. Low and High work fine off the the bypass.
What else could cause this problem?
Is there a factory installed relay for the headlight I missed on the wiring diagram?
Ignition switch? But if that is the case why isn't the high beam working?