by GMP » Fri Jul 25, 2014 6:50 pm
It spins because the press fit is lost as you can see the wall is broken away. Simple fix is a remove, clean, and bond back on with a plastic epoxy. Better, find a compatible knob or mod one for a good fit. Other than that I'm sure that is a one piece assy with the screw. Maybe not to hard to get, Les at LTR or Steve here would know. Why did it break, is the adjuster to tight?
Glenn
'13 Beta 300RR Racing