Ducati MULTISTRADA 620 Manuel D'utilisation Et Entretien page 153

Throttle cable tension adjustment
The throttle twistgrip must always have free play measured
at the edge of the twistgrip, of 1.5 – 2.0 mm (fig. 49).
If this is not the case, adjust the cable by means of the
adjuster (1) on the throttle body (fig. 50).
Important
E
Refer the adjustment of throttle control play to a
Dealer or Authorized Workshop.
60
1,5 ÷ 2 mm
1,5 ÷ 2 mm
fig. 49
1
fig. 50