The front brake discs consist of an inner carrier, which is mounted to the wheel, and an outer rotor. Both parts must be changed together as a pair.
Remove the front wheel (sect. 7 - 1, Removal of the front wheel).
Undo the retaining screws (5) of the disc to the wheel, remove the disc (7) and, on its left side, slide out the phonic wheel (6).

Removal of the front brake system
Overhauling the front brake componentsNoise and exhaust emission control
system information
Source of emissions
The combustion process produces carbon monoxide and
hydrocarbons. Control of hydrocarbons is very important
because under certain conditions, they react to form
photochemical smog when subjected to sunlight.
Carbon monoxide does not react in the same way, but is
toxic. Duca ...
Clock setting function
This function sets the clock.
To access the function it is necessary to view the "setting" menu page 48, using
button (1, fig. 14) ?"
"or (2, fig. 14) ?""select the "clock"function and
press the reset button
(12, fig. 12) To confirm.
In the follow ...
Shimming the shafts
Before assembling the crankcase halves, calculate the shims required to
obtain the correct end float of the crankshaft and
gearbox shafts.
To determine the correct shim thickness proceed as follows.
Shimming the crankshaft
After having installed the new main bearings (with bushing (a) or ...