[dgall]

Looks like there is a half moon protrusion sticking out of the bar end that I think matches a notch in the inner weight inside the bar. So now that you have it loose you have to turn and push the bar end into the inner weights notch and that will lock them together so the inner weight with the threads doesn’t spin. If you’re unscrewing the screw and pulling the end outward away from the inner weight, the inner weight can freely spin. Hope this makes sense. See page 17-13 in the service manual for removal instructions. It has a picture showing how the half moon notches must be aligned.