Centrifugal Clutches Is There A Special Tool To Remove The Centrifugal Clutch From A Ryan String Trimmer Engine?

Is there a special tool to remove the Centrifugal clutch from a Ryan string trimmer engine? - centrifugal clutches

Ryan, I have a string trimmer with a combustion engine. I can not say if the thread holding the centrifugal clutch on the left or right side. And I can not be removed with a hammer and drift.