Ducati SPORT TOURING ST3 Manuel D'utilisation Et Entretien page 184

Engine
Twin cylinder, four-stroke, 90° "L" type, longitudinal.
Bore:
94 mm
Stroke:
71.5 mm
Total displacement:
992 c.c.
Compression ratio:
11.3±0.5:1
Max. power at crankshaft (95/1/EC):
75 kW – 102 HP at 8750 rpm
Max torque at crankshaft (95/1/EC):
93 Nm (95 kgm) at 7250 rpm
Max. rotation speed
9,500 rpm
Important
Do not exceed specified rotation speed limits under
any running condition.
Timing system
Desmodromic (type) with three valves per cylinder,
operated by six rockers (3 opening rockers and 3 closing
rockers) and one overhead camshaft. It is operated by
the crankshaft through spur gears, belt rollers and
toothed belts.
All manuals and user guides at all-guides.com
Desmodromic timing system (fig. 89
1) Opening (or upper) rocker.
2) Opening rocker shim.
3) Split rings.
4) Closing (or lower) rocker shim.
5) Return spring for lower rocker.
6) Closing (or lower) rocker.
7) Camshaft.
8) Valve.
7
1
5
2
3
4
6
3
4
6
8
E
2
4
5
8
2
fig. 89
87