Check that the keyway on the end of the camshaft is in good condition and without burrs.

Fit a woodruff key (b) in the keyway of each camshaft.

Fit the pulley (11) on the camshaft, inserting the woodruff key in the in the slot (c) in the pulley.
Apply the recommended grease to the threads on the end of the camshaft.
Repeat the procedure on the other camshaft.

Insert the tool code 88713.1806 Into the pulleys to prevent rotation.
Apply the recommended grease to the mating face of the nut (21).
Fit the nut (21).
Carry out the same operations on the other camshaft.
Important
Always fit new nuts on reassembly.

Using the bush supplied with tool with part no. 88713.1806 And a torque wrench, tighten the ring nuts (21) to the specified torque of 71 nm (min. 64 Nm - max. 78 Nm) (sect. 3 - 3, Engine torque settings).

Insert the fixed tensioners (13), with bearings and washers (7), into the cylinder head pins and tighten the nuts (8) to a torque of 25 nm (min. 22 Nm - max. 28 Nm) (sect. 3 - 3, Engine torque settings).

Undo the locking screws (22) of the pulleys, turning them anti-clockwise through 90 +/- 5.
Check that the pulleys have no end float and can rotate freely at all points along the full length of the slots.

Reassembly of the timing pulleys
Refitting the timing beltsIndication 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 ...
Main bearings
The main bearings have are of the angular contact type with offset inner
races so that the balls transmit loads from one
groove to the other along straight lines at an angle to the axis of the bearing.
The angle-contact ball bearings are
designed for bearing combined loading (radial-axial load ...
Tips on how to select the sensitivity level
Warning
The 8 level settings of the dtc were calibrated using tyres of the
same make, model and size as those originally fitted to
the motorcycle.
The use of tyres of different size to the original tyres may alter the operating
characteristics of the system.
In the case of minor differen ...