Ducati 749S 2005 Owner's Manual page 173

Beam setting (fig. 75)
When checking the beam setting, put the motorcycle
upright. Tyres should be inflated at the correct pressure
and one person should be sitting astride the motorcycle,
keeping it at right angles to its longitudinal axis. Place the
motorcycle opposite a wall or a screen, 10 metres away
from it. Draw a horizontal line dictated by headlamp
E
centre and a vertical one in line with the longitudinal axis
of motorcycle.
If possible, perform this check in dim light.
Switch on the low beam.
The height of the light spot (measured at the upper limit
between dark and lighted-up area) should not exceed 9/10th
of the height from ground of headlamp centre.
Notes
Note: This is the procedure specified by Italian
standards to check the maximum height of the light beam.
Owners in other countries will adapt said procedure to the
provisions in force in their countries.
The vertical position of the headlamp is set by means of the
adjusting knobs (1, fig. 76) on the left side of the headlamp.
Rotate the knobs clockwise to lower the beam or anti-
clockwise to raise it.
Notes
To gain access to the lower knob, you must first
remove the headlamp fairing as described on page 59.
76
10 m
1
DOWN
UP
9
x
x
10
fig. 75
fig. 76