Engine; Timing System - Ducati 749R Owner's Manual

Engine

Twin cylinder, four-stroke, 90° "L" type, longitudinal.
Bore:
94
Stroke:
54
Total displacement:
749
Compression ratio:
E
12,7±0,5:1
Max power at crankshaft (95/1/EC):
86,5 kW - 118 CV a 10.250 min
Max torque at crankshaft (95/1/EC):
-1
81,5 Nm a 8.250 min
Max rotation speed:
11.500
Important
Do not exceed specified rotation speed limits under
any running condition.

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.
82
-1
Desmodromic timing system (fig. 81)
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
1 2 3
7 5 4
fig. 81