Originally Posted by lenny
that thumb screw i saw in back ,on the right side ajusts the high beam?
At least on the pre-'05's, that adjusting screw inside the fairing is the main vertical adjustment for the entire headlight. The knob on the dash is for fine tuning for load, two-up etc.
From the Service Manual:
Set suspension preload to LOW (turn counterclockwise).
Make sure that the adjuster on the instrument-panel
cover is at the UP position (turned counter-clockwise
as far as it will go).
If necessary, turn the adjuster on the instrumentpanel
cover counter-clockwise as far as it will go.
Manually adjust the headlight beam throw by
turning the adjusting screw (1) beneath the fairing
upper section with the aid of the headlight
Setting for headlight beam angle adjuster
....... .-10 cm (-3.94 in) (from vertical) at a distance of 10 m (32.80 ft)
Turned to left............................ longer throw/higher
Turned to right ......................... shorter throw/lower
If necessary, laterally adjust the headlight beam
angle by turning the adjusting screw (2) at the top
left of the headlight with the aid of a cross-recessed