Ducati 749S 2002 Manuel D'utilisation Et Entretien page 116

Cold start lever (fig. 20)
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 46).
Important
E
Never use the cold start device when the engine is
warm or leave it open when riding.
26
A
B
1
fig. 20