Correct me if I'm wrong. I'm 99% sure I'm correct (yes, I looked in my manuals) in remembering that the motor crank threads for the primary motor sprocket are normal, RIGHT hand threads.

And . . . the clutch hub nut is LEFT hand threads.

Just making sure my brain is working before I put more pressure on the torsion bar.

 

You are correct

 

Also, the retaining nut on the transmission sprocket (pulley) is also a L/H thread on 4 & 5 speed machines.