The motorcycle must be perfectly upright with the tires inflated to the correct pressure and with a rider seated, perfectly perpendicular to the longitudinal axis.
Position the motorcycle 10 metres from a wall or a screen.
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.
Note
If possible, perform this check in conditions of low ambient 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 nine tenths of the height of the centre of the headlight from the ground.
Note
This is the procedure specified by italian regulations for checking the maximum height of the light beam.

The vertical alignment of the headlamp can be adjusted manually by turning screw (1).
Turn the screw (2) to set beam height.


Changing bulbs
Indicating devicesIgnition coils
Introduction
The engine control system of the diavel includes two ignition coils: one for
the horizontal cylinder and one for the vertical
cylinder. These coils are installed directly in the spark plug wells. A diode is
installed on the secondary winding inside the
coil, which prevents the un ...
Refitting the filler cap
Position seal (18) in tank cap (10) as shown and reassemble following the
removal procedure in the reverse sequence.
In particular tighten the screws (17) to a torque of 3 nm +/- 10% (sect. 3 - 3,
Frame torque settings).
...
Horn not working
Fault codes
Dds: horn diagnosis -> short circuit to ground (s.C. Gnd).
Dashboard: the error "claxon" (horn) is shown on the service display. The eobd
warning light activates.
Wiring diagram
Db dashboard connection, s horn button. 5 Blue/white - b/w, 1 red/blue - r/b,
db 19 purple/bl ...