A friend of mine just got a 72 Honda CL350 Scrambler. The bike has the original tank and sidecovers, and they are pretty fragile. Im wondering how the sidecovers come off? I got the two tabs on top to pop out, but it looks like there is a allen head bolt in the lower middle. It seems like they are holding the sidecovers on still. I dont want to force anything and break it. The "bolt" isnt an allen head or standard or phillips, its just round inside. Anybody know how these come off? thanks.