Ducati Diavel
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Ducati Diavel Service Manual: Overhaul of the gearbox

Check the condition of the front coupling dogs of the gears. They must be in perfect condition and with no sign of wear on the edges of the teeth.

The idler gears must rotate freely on their shafts.

When refitting, make sure the circlips are correctly positioned.

Check the needle roller bearings for wear.

The threads and splines of the shafts must be in perfect condition.

Also check that the component parts of the gear selector mechanism are in good condition.

Engage

Overhaul of the gearbox


Engage the gears and check that the gearchange mechanism does not stick (selector fork - gear groove, and fork pin - desmodromic drum groove) due to incorrect end float. Restore the correct end float by shimming the gearbox shafts and the selector drum with suitable shims.

For the total gearbox shaft and selector drum end clearance values, refer to sect. 3 - 1.1, Gearbox.

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 jam ...

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 ...

Other materials:

Reassembly of the gearbox
To refit the gearbox components follow the procedure under sect. 9 - 9.2, Reassembly of the crankcase halves, relating to reassembly of the engine crankcase. As a final practical test, ensure that with the gearbox in neutral the front coupling dogs (a) of sliding gears (b) are equidistant o ...

Separation of the crankcase halves
Use two screwdrivers to remove the circlip (29) from the timing belt driveshaft shaft (30) on the clutch-side crankcase half. Note Take care to avoid scoring the surface of the shaft while removing the circlip. Unscrew the crankcase half screws on the chain side. Unscrew ...

Rh switch
Red on/off switch. Black engine start button. The switch (1) has three positions: Centre: run off. In this position, the engine cannot be started and all electronic devices are off. Pushed down: on/off. In this position, the system can be turned on (key-on) and off (key-off). Pus ...

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