Engine; Timing System - Ducati Superbike 848evo Corse Owner's Manual

Engine

Longitudinal 90º "L" twin cylinder, four-stroke.
Bore:
3.7 in (94 mm)
Stroke:
2.4 in (61.2 mm)
Total displacement, cu. cm:
849.4
Compression ratio:
13.2 ±0.5:1.
Max power at crankshaft (95/1/EC), kW/HP:
103 kW/140 HP at 10,500 rpm
Max torque at crankshaft (95/1/EC):
72.2 lbf ft (98 Nm) at 9.750 rpm
Maximum rpm:
11,300
Important
Do not exceed the specified rpm limits in any
running conditions.

Timing system

DESMODROMIC 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.
140
Desmodromic timing system
1) Opening (or upper) rocker.
2) Opening rocker shim.
3) Closing (or lower) rocker shim.
4) Return spring for lower rocker.
5) Closing (or lower) rocker.
6) Camshaft.
7) Valve.
6
2
5
1
(fig. 98)
2 1
3
5
4
7
fig. 98