Ducati Diavel Owners Manual: Trip 1 meter
This function shows the distance travelled since the trip meter was last reset (in km or miles depending on the specific application).
Holding the button (1, fig. 14) 
pressed for 3 seconds
when this function is displayed resets the trip meter.
When the reading exceeds 9999.9, Distance travelled is reset and the meter automatically starts counting from 0 again.
If the system measurement units are changed at any moment through the "set units" function of the setting menu, or if there is an interruption in the power supply (battery off), the distance travelled is reset and the count starts from zero (considering the newly set unit of measurement).
Note
When this value is reset, also the "average fuel consumption", "average speed" and "trip time" functions are reset.
Total distance covered indicator: "odometer"
This function shows the total distance covered by the vehicle
(in km or miles depending on the specific application).
At key-on the system automatically enters this function.
The odometer readi ...
Trip 2 meter
This function shows the distance travelled since the trip
meter was last reset (in km or miles depending on the
specific application).
Holding the button (1, fig. 14) ?
pressed for 3 seconds
w ...
Other materials:
Removing of the rear wheel
Place the motorcycle on the rear service stand and engage the 1st gear.
Remove the clip (6).
Using a suitable socket wrench, loosen the wheel nut (1).
Fully unscrew the nut (1), then remove the washer (2) and the spacer (3).
Remove the rear wheel from the motorcycle.
...
Spark plugs replacement
Check the colour of the ceramic insulation around the central electrode:
an even, light brown colour indicates the engine is in good condition and
running at the right temperature.
Inspect the centre electrode for wear and check spark plug gap, which should be:
0.8+/-0.1 Mm.
Important
...
Refitting the gear interlock plunger and pawl assembly
On the special screw (3), fit the gear pawl lever (4), orienting it as shown
in the figure, the washer (2) with the square
edge side (d) facing the clutch-side crankcase half, and the spring (1),
positioning it so that the hook end (a) is facing
the gear pawl lever. Locate the hook end (a) of ...