Ducati MONSTER 1200, Owner'S Manual, Page: 332 / 344

Timing system
DESMODROMIC system with four valves per
cylinder controlled by eight rocker arms (four
opening and four closing ones) and two overhead
camshafts. This system is driven by the crankshaft
through spur gears, pulleys and toothed belts.
Desmodromic timing system
1) Opening (or upper) rocker arm;
2) Upper rocker arm shim;
3) Closing (or lower) rocker arm shim;
4) Return spring for lower rocker arm;
5) Closing (or lower) rocker arm;
6) Camshaft;
7) Valve.
6
1
2
2
2 1
5
3
5
4
7
Fig 232
331