I just got a chance to finally ride my 06 k 12s.i picked it up last month and then the snow hit. 30+ inches. so the snow melts and I get to ride. as i am riding home in the dark (1st time) I notice the light pattern is not what I am accustomed to, riding jap bikes for 30 years. it seems as thought the pattern is more to the left then to center. the 2 adjustments for loaded and unloaded is strange but I get it. the problem I am having is with the screws themselves. the one that is together with the white lever moves it up and down turns and does add some height, .but the one that moves side to side broke off as soon as I tried to turn it. well it didn't exactly break as it did come off, leaving a little rubber 'boot'. the rod coming out of the headlight nacell is not threaded, nor is the knob that came off, inside or out. so my question is : how does this thing 'adjust' w/o threads and how do I get this knob to stay on w/o threads. this is most confusing for what seems like a simple adjustment. I am sure I am missing something and could use some help.