Question about Noise while releasing clutch

Very interesting
Im getting ready to change the clutch fluid, 30,000 mile service.
Mine makes erratic noise also so will see what happens after a change.
My manual says adjust the clutch also but there is no such section I can find and nothing I can see on the parts schematic.
Any input anyone ?
 
There's no adjustment. I have a tiny leak in a fitting somewhere, so I "burp" the master cylinder from time to time when shifting gets difficult. In the manual it doesn't mention it, but it's the same procedure that is mentioned for the front brake. Also, needed if you accidentally introduce air into the line.

Getting to the clutch here...

and "burping the MC" here....