My '85 K100RS is pretty original. Everything is working fine with my "center stand", kick stand, and clutch release. I've not had my "center stand" apart as of yet, (still a pretty new bike for me). So I truly don't know what I am talking about, yet. I just stuck my head and flashlight under my bike and took a look at the 4 bolts holding the bracket "center stand" in place. My bolts are "allen head" and there are no washers showing between the bolts and the bracket. I can't see any washers on these 4 bolts anywhere. It does not appear to be any washers between the bracket and frame either, but I have not loosened up the 4 bolts and taken the bracket off or away from the frame.