In case anyone else with a 929 is looking for this same adjustment in the future.......I found an adjustment screw down low, in between the low beam and the right side high beam. It is a small bolt head ( possibley 12 or 13 mm) that will also take a phillips screwdriver. It is slightly recessed behind a plastict lip but in plain sight if your looking for it. turning it clock wise lowers the beams focus and counter clockwise raises it.
CBR929-jardine race can, down 1, polished frame and swing arm,wheels polished, HELI bars, Sargent seat, Puig racing screen