Hello chap
I have one of these, I recently restored it. I am into this model big time. Can you send me a few pics of the bike and I might be able to help you out.
My bike is in December issue of Practical Sportsbike mag, some useful info in there,
These are not worth a lot, so be careful on the price. I am looking for another one, so if you dont want it, drop me a line. I paid over the odds for mine, spent a small fortune doing it up!!!!