Sorry you got such a bad (no) response to your question, and I'm sure that if anybody did know then they would have replied. Sometimes that happens, and I certainly don't know the answer myself. I can only suggest that you find a forum that deals more specifically with older Japanese motorcycles, or Hondas in particular, like this one:
http://www.cmsnl.com/classic-honda-fansite/ which I hope will give you the answers you need?
