After running a search I was unable to find the thread with the pics I was looking for
All you need is a phillips screw driver after removing the lower panel.
https://www.hayabusa.org/forum/maintenance-do-yourself/21106-headlight-adjustment-what-gives.html
I know this the gen1 but the gen 2 is almost the same, pretty sure
phillps screwdriver slides through channels and by turning it you can adjust it with out the use of socket or ratchet... can't believe that thread is lost in the vast knowledge of the org.
Even said what size phillips to use and he showed how to slide it through the channels to turn the screws
Those screws have teeth and when the right size screw driver is inserted you turn the screw like the gears meshing in the differential of a car