Ducati MONSTER 821, Owner'S Manual, Page: 258 / 295

Aligning the headlight
Check correct headlight aiming. Position the
motorcycle 10 metres (32.81 ft) from a wall or a
screen, the motorcycle must be perfectly upright with
the tyres inflated to the correct pressure and with a
rider seated, perfectly perpendicular to the
longitudinal axis. On the wall or surface, draw a
horizontal line at the same height from the ground as
the centre of the headlight and a vertical line aligned
with the longitudinal axis of the motorcycle. If
possible, perform this check in dim light. Switch on
the low beam. The height of the upper limit between
the dark area and the lit area must not be more than
9/10 of the height from the ground of the headlight
centre.
Note
This is the procedure specified by Italian
regulations for checking the maximum height of the
light beam. Please adapt said procedure to the
provisions in force in your own country.
10 m
9
10
x
x
Fig. 207
257