The hands free system consists of:

The "hands free" button (7, fig. 79) Is located on tank front end.
Position of motorcycle controls
Hands free system key-on and key-offIndicator cons. - Instantaneous fuel consumption
This function indicates the "instantaneous" fuel consumption.
The calculation is made considering the quantity of fuel used and the distance
travelled during the last second. The datum
is expressed in "l / 100" (litres / 100 km); it is possible to change the units
of measurement for "consump ...
Gear indicator display on dashboard shows dashes, engaged gear not displayed
correctly, idle speed irregular
with gearbox in neutral
Fault codes
Dds: gear sensor diagnosis -> short circuit to ground or open circuit (s.C.
Gnd or c.O.) - Short circuit to vdc (s.C. Vdc)
- congruence (generic error - signal not correct).
Dashboard: the error "gear sensor" is shown on the service display. The eobd
warning light activates.
...
Refitting the rear sprocket
Check the cush drive bushes (6) condition and, if necessary, replace them by
removing them from the flange.
Refitting is the reverse of removal.
Apply recommended grease on the rear sprocket flange (5) external diameter.
Place the rear sprocket flange (5) on sprocket (17) by inserting it ...