I have one, never installed it on a bike, got it in one of the boxes of spare parts for the '84 LS .
From what I can tell the damper from the damper I have, it's non-adjustable, and only dampens with very quick movement .
There's is a threaded hole on the bottom side of the lower triple clamp, right hand side, that seems to be the forward attach point, but no idea where it would mount to the frame, there are extra holes in the horn bracket, possibly it mounts there .