I have a HRB215-HXA, serial MZBA-6430780, with a Roto-Stop. I had to disassemble the engine to fix issues with an oil leak and I need to know how to adjust the Roto-Stop when reattaching it to the crankshaft. Can anyone help? Is there a specified torque value or is it a compression distance on the body with the clutch spring? Thanks for any help.