Engine; Timing System - Ducati MONSTER 400 Owner's Manual

Engine

Twin cylinder, four-stroke, 90° "L" type, longitudinal.
Bore mm/in.:
70.5 / 2.78
Stroke mm/in.:
51 / 2
Total displacement cu.cm./cu. in.:
398 / 24.29
Compression ratio ±0.5:1:
E
10.
Max. power at crankshaft (95/1/CE):
31.6 kW - 43HP at 10500 rpm.
Max torque at crankshaft (95/1/CE):
33 Nm at 7500 rpm.
Important
Do not exceed specified speed limits (see page 55)
under any running condition.
54

Timing system

Desmodromic (type) with two valves per cylinder,
operated by four rockers (2 opening rockers and 2 closing
rockers) and an overhead camshaft. It is operated by the
crankshaft through spur gears, belt rollers and toothed
belts.
Desmodromic timing system (fig. 40)
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.
1
2
3
4
6
5
7 8
fig. 40