Warning
The clutch master cylinder manufacturer advises against servicing of the clutch master cylinder (1) due to the safetycritical nature of this component. Incorrect overhaul of this component could endanger rider safety.
Maintenance operations of the master cylinder are limited to replacing the following parts: control lever, reservoir unit, and master cylinder fasteners.

Loosen the special screw (1) by collecting the seals (2), to release the clutch master cylinder assembly (3) from the clutch control pipe (4).

Undo the fixing screws (v) of the mounting u-bolt (6) and then remove the clutch master cylinder unit (3) from the handlebar.

Refer to the exploded view at the beginning of this section for indications on disassembly and replacement of the master cylinder components.
Hydraulic clutch control
Refitting the clutch master cylinder assemblyChecking brake pads for wear
Check brake pads wear through the inspection hole in the
callipers.
Change both pads if friction material thickness of even just
one pad is about 1 mm.
Warning
Friction material wear beyond this limit would lead to
metal support contact with the brake disc thus
compromising braking efficie ...
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 ...
Removal of the timing belt covers
Loosen the screws (4) securing the central external cover (1) and remove it
from the central side.
Undo the fixing screws (4) of the external cover (25) and remove it from the
vertical thermal unit.
Undo the fixing screws (4) of the external cover (3) and remove it from the
horizonta ...