Ducati MONSTER 620 2002 Manuel D'utilisation page 118

Throttle cable adjustment
2 ÷ 4 mm
The throttle twistgrip must have a free play of 2 - 4 mm,
➤
measured at the edge of the twistgrip and at all positions
of the handlebars. If it needs adjusting, use the suitable
adjuster (1, fig. 41) provided on the throttle control.
1
E
fig. 41
46