Ducati Diavel Service Manual: 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 pins; these must not show any signs of scoring, burrs, or deformation.
Turn the drum in the crankcase to establish the extent of radial play. If play is excessive, change whichever part is most worn.
Inspection of the gear selector forks
Visually inspect the gear selector forks. Bent forks must be renewed as they
may lead to difficulties in gear changing or
may suddenly disengage when under load.
Use a feeler gauge to check the ...
Reassembly of the gearbox shafts
Figure 1 shows all the parts to be reassembled on the gearbox primary shaft
(2), with the calculated end shims (1) and
(11) (sec. 9 - 9.2, Reassembly of the crankcase halves).
Figure 2 shows a ...
Other materials:
Disassembly of the gearbox shafts
Place the shaft in a vice in such a way as to facilitate the disassembly
operations.
Important
Take care not to invert the positions of the shims on reassembly:
this would potentially lead to jamming when using the gear selector control,
making it necessary to reopen the engine
crankcase.
D ...
Changing and cleaning the air filters
The air filter must be replaced at the intervals described in the "scheduled
maintenance chart" (sect. 4 - 2).
Work on the vehicle right side, loosen screws (1) that secure the intake duct
(2) to the filter box, and the radiator
retaining screw (3); recover the washer (4).
Remove the in ...
Changing the coolant
Warning
This operation must only be carried out when the engine is cold.
Attempting to change the coolant with the engine hot
could lead to burns from hot coolant or scalding steam.
Place a container under the engine and place the motorcycle on its side
stand.
Remove the expansion reserv ...