If the correct adjustment for the release bearing to the clutch is stated in attachment c-ch31 (Honda 600 shop manual Coupe supplement) the part is identified in the parts manual attachments cpar-18 (#19) and listed on cpar-19.
If the bearing has been touching the clutch diaphragm spring cpar-18 (#7) then it may be warn out and could need replacement.
But making the correct adjustment may fix the problem.
Bill