I have a Ryobi weed wasp trimmer that I'm trying to remove the cylinder and piston from. To do this I need to remove the clutch housing to get acces to the screws behind the plastic covers. There is a screw in the middle of the clutch which i need to remove. Is this screw left or right hand thread?

Meho, October 2009

Standard thread use a 25 torx screw driver, but lock the piston up first.

Inni, March 2011