I'm new to the 1200gs but I don't what these bolts do. The closest one in the picture that's all by itself and the top looks really rusted (mostly from the flash) . What is it? It has a little sleeve which is able to move up and down a little bit. Do you think I need to tighten it. The other one I'm confused about is the one near the disc brake that's all by itself. It looks like something's supposed to be attached there but nothing is. So what do they do, do they need tightening?