I just installed the Honda tip-out windshield and have a problem. If I tighten the knobs thru the hinge arms they won't hold the windshield open or closed. In other words, if I tighten both knobs I can still open the windshield. if left like this, the windshield will bounce all over while riding. I'm sure I installed it correctly. I think the knobs bottom out before they tighten against the hinge arms. Anyone install a windshield? Help!