Ducati MONSTER 821 Workshop Manual page 1019

Turn adjuster (5) to tension clutch cable (4) on handlebar.
Screw adjuster (5).
Warning
Never loosen adjuster. Adjuster must be screwed, only.
Adjuster (5) standard adjustment (A) is higher than or equal to 5 mm from the fully home position.
Pull brake lever two or three times to settle cable, then check distance (A).
If, with (A) = 5mm, clutch does not correctly disengage, adjust cable as follows:
- loosen lock nut (22);
- screw nut (23) until clutch disengages correctly.
If the procedure cannot be repeated again and distance (A) is not respected, restore clutch.
Fill the engine with oil (Changing the engine oil and filter
cartridge).
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