If you see (2) small holes in that black ring, then it is threaded and you just take a circlip tool (if you have one, if not,
see if you have a pair of needle nose pliers that willfit the tip of each part of the nose into one of the
holes... if you don't have one of those, try using (2) small nails (one in each hand) and rotate the ring
anti clockwise to unscrew it. The ignition switch will stay in place. I have an 82 R65LS model, which has this
little black metal ring - your model may be different, I suspect, in regard to this bit.
