Ducati Scrambler - Timing System

Timing system
DESMODROMIC system with two valves per
cylinder controlled by four rocker arms (two opening
and two closing ones) and one overhead 
This system is driven by the  through spur
gears, belt rollers and toothed belts.
Desmodromic timing system
1) Opening (or upper) rocker arm;
2) Upper rocker arm shim;
3) Split rings;
4) Closing (or lower) rocker arm shim;
5) Return spring for lower rocker arm;
6) Closing (or lower) rocker arm;
7) 
8) Valve.
1
2
3
4
6
5
7
8
Fig 209
216