Ducati MONSTERS4R Manuel De L'utilisateur page 131

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Number plate light (fig. 60)
To expose the number plate bulb (3), withdraw the lamp
holder from inside, then extract the bulb and replace it.
E
3
fig. 60
Headlamp alignment (fig. 61)
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
9
x
x
motorcycle.
10
If possible, perform this check in dim light.
Switch on the low beam:
the height of the light spot (measured at the upper limit 10 m
between dark and lighted-up area) should not exceed
9/10th of the height from ground of headlamp center.
fig. 61
56