While at Myrtle Beach Bike Week (which was just ok, by the way), I had another rider tell me my high beam was out, although I did have a working low beam....I went to HD got another bulb, replaced it and it was working....On the ride home (700 miles) my headlight began pulsating...now it is on and off...no clue ....anybody know?????

 

Sounds like an intermittant problem.
Possibly a loose connetion or cracked wire.
You will have to try and duplicate in the garage.

The place I would start would be to remove the faring, with wires still conneted and the headligh on, slowly wiggle the plug then work you way down the wire harness, wiggling and watching for an interuption with the light.

Good luck

 

..or take it in for service if under warranty. Let them deal with it.