Desmodromic (type) with four valves per cylinder, operated by eight rocker arms (4 opening rockers and 4 closing rockers) and two overhead camshafts. It is operated by the crankshaft through spur gears, belt rollers and toothed belts.
Desmodromic timing system (fig. 159)

Engine
Performance dataRemoval of the lubrication system
Disconnect the sensor (12) of the main wiring.
Open the pipe grommet (11).
Undo the screw (8) and slide out the plate (9).
Slide the tubes (7) out of the half-casing having care not to damage the tubes
o-rings (a) that guarantee the coupling
sealing.
Undo and remove the sc ...
Removal of the clutch
Note
For clarity, the figures show the engine removed from the frame.
Undo the fixing screws (1) and remove the ring (2) and the springs (3) from
the pressure plate (4).
Slide the pressure plate (4) paying attention to the circlips (6).
Remove the clutch control pin (14) and the ...
Reassembly of the front half-fairings
Fit the clips (2) on the front rh half-fairing (1).
Join the rh support (4) and the front rh half-fairing (1) and keep them in
position by starting the screws (5).
Note
To mount the rh support (4) in a proper way, it is necessary to insert the
tab (g) of the front rh half-fairing (1) in t ...