Ducati MONSTER 620 2002 Manuel D'utilisation page 93

Cold start lever (fig. 13)
Use this device to start the engine from cold. It will
increase the engine idling speed after starting.
Lever positions:
A) = closed
B) = fully open.
The lever can be opened and closed gradually to adjust
speed until engine is fully warm (see page 34).
Important
Never use the cold start lever when the engine is
warm or leave it open when riding.
A
B
E
fig. 13
21