Back in late May I managed to find a 1975 Besson. This was the condition of the horn, at the time I purchased it off of ebay.
http://www.ebay.com/itm/Early-1970-0...p2047675.l2557
And after a few months it had some time in the repair shop. Here's a few pictures:
I intend to swap out the valve springs, and I was wondering what other owners are using for springs and valve oil on this model. Any suggestions would be appreciated.