Ducati MONSTER Manuel De L'utilisateur page 108

Throttle cable adjustment
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(s) (1, fig. 31) provided on the throttle control.
E
1
600/750
900
1
fig. 31
40