Warning
The brake master cylinder manufacturer advises against servicing the brake master cylinder due to the safety critical nature of this component. Incorrect overhaul of these critical safety components can endanger rider and passenger safety.
Maintenance operations on these units are limited to renewal of the following parts: control lever, fluid reservoir assembly and relative fasteners and master cylinder fasteners.
Note
For the abs front braking system, also refer to sect. 7 - 5, Abs system operating information, sect. 7 - 6, System components, sect. 7 - 7, Abs components maintenance.
Undo the special screw (3), collect the sealing washers (4), and release the front brake master cylinder assembly (1) from the pipe.
Loosen the screws securing the terminal (12) and then remove the front brake master cylinder assembly (1) from the handlebar.
For disassembly of components of the master cylinder assembly (1), refer to the exploded view at the beginning of this chapter.
Indication of range reached for service
When service coupon threshold is achieved, upon every key-
on the system displays the indication of the type of
intervention that is required (oil service or desmo
service).
The (red) warning is activated as a large icon for 10 seconds
upon every key-on (1, fig. 33) Then as a small warning th ...
Inspection of the gear selector drum
Use a gauge to measure the clearance between fork pin and the slot on the
selector drum.
If the service limit is exceeded, determine which part must be replaced by
comparing these dimensions with those of new
components (sect. 3 - 1.1, Gearbox).
Also check the wear on the drum support pin ...
Overhauling the front wheel
Wheel bearings
Before checking the dimensions, check the wear on wheel bearings. Check for
wear by hand after cleaning and degreasing
the bearings in their seats.
Turn the inner race.
Check the amount of radial and axial play. Excessive play will cause vibration
and make the bike unstabl ...