Headlamp Alignment - Ducati MONSTER S4 Owner's Manual

Headlamp alignment

(fig. 39.1)
When checking headlamp alignment, 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 and
opposite a wall or a screen, 10 meters apart from it. Then
draw a horizontal line dictated by headlamp center 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
th
9/10 of the height from ground of headlamp center.
Note
The procedure described here is in compliance with
the "Italian Standard" establishing the maximum height
of the light beam.
Owners in other countries will adapt said procedure to
the provisions in force in their countries.
The height of the light beam can be corrected using the
screws (1, fig. 39.2) that secure the headlamp to the side
supports.
E
fig. 39.1
1
fig. 39.2
47