DISCLAIMER: I may use capitols to emphasize important issues. I am not angry or condescending.
You cannot adjust a clutch.
You can only adjust WHEN it engages.
If the clutch plates are slipping and you continue to drive
it then the metal plates will get hot,turn blue ,warp and be ruined,
so it will cost almost twice as much to repair.
That can happen in just 3 days time.
When you take it apart lay the metal plates on a glass plate
or a machined surface to see if they are warped.
If they are then don't use them it will make the clutch chatter.
On a Roadstar Adventure.