Engine; Timing System - Ducati SUPERBIKE 999R 2006 Anleitung- Und Instandhaltungsheft

Engine

Twin cylinder, four-stroke, 90° "L" type, longitudinal.
Bore (mm):
104
Stroke (mm):
58.8
3
Total displacement cm :
999
Compression ratio:
12.5± 0.5:1
Max power at crankshaft (95/1/EC):
106 kW -144 hp at 9,750 rpm
Max torque at crankshaft (95/1/EC):
110 Nm at 8,000 rpm
Max rotation speed, rpm:
11,000
Important
Do not exceed the specified rpm limits in any running
conditions.

Timing system

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. 81)
1) Opening (or upper) rocker;
2) Opening (upper) rocker shim;
3) Closing (lower) rocker shim;
4) Return spring for lower rocker;
5) Closing (lower) rocker;
6) Camshaft;
7) Valve.
6
1 2 3
7 5 4
fig. 81
83
E