I had just sold a disaster of a BSA A7, and was on the lookout for a decent bike. A good friend pointed me at a 650SS basket case. He said he had rebuilt the engine and gearbox. It was a few miles away, so I borrowed another friends estate car and went to have a look. It was more or less all there, so we agreed a price, I paid up and brought it home. There were some new Dunstall pipes and silencers which the PO had just bought, a day or two before, these went rusty within one month. Despite that, and with the help of the engine builder, who just happened to be the senior mechanic at the local Norton agent, the bike came together quite well and quickly. It was MOT'd taxed and on the road within a few weeks. Not particularly pretty but functional. The engine builder said that he had built the engine with a Dunstall (racing?) cam and associated bits. Running the thing in was to be honest disappointing, the motor was as flat as a tack, rice pudding skins were not in danger. That was until 4,500 rpm arrived when the thing took off. I was much happier, although the silencers and front pipes demanded a lot of effort to keep the rust at bay, ultimately a losing battle of course. When it was run in it accelerated level with a Ferrari V12 up to 100mph, on the North Circular in London (!!, 30mph limit), and was clocked at 126 mph on the Andover By Pass, but that's another story. By this time it had about 4,500 miles on it, and apart from the rusty bits I loved it. Then the cam gear started rattling. Took it to bits and the Dunstall cam was obviously shagged. So I visited my local friendly Norton agent and got a 2S cam, with rev counter drive. Made some upgrades to the oil pump drive (twice speed), new rocker spindles etc and bolted it all back together. Run in again. This time was different, it would pull tree stumps, revved beautifully cleanly and was a complete delight. It seemed to have a really flat torque curve.
The boss and I rode it around for several years, just doing the routine things you have to do. It was our daily transport, and took us to work through rain, hail, snow and ice without a miss. We went camping with it, did two RAC/ACU rallies on it, winning a plaque both times. Then I decided to give it a refurb, as I was happy with the way it went, but it really did need a tidy up. Took it to bits, epoxied the frame and other bits that were black, fitted a Commando spin on oil filter, rebuilt with all new stainless nuts and bolts (from Dave Middleton if I remember right), made a new harness, easy with a magneto!, new stainless pipes and the correct shape Dominator silencers again stainless, they cost an arm and a leg. It was pretty much all together when we decided to emigrate, and sold it unfinished. The new owner ran a motor cycle shop and was a road racer. He had been injured so many times that he had a certificate from his local hospital to say that he was sane!! There was some doubt apparently.
The only thing to be done was to fit a disc brake set up, I had a early Commando set of forks and front wheel ready to go.
I often wonder what happened to it, I really do hope that the dear old thing has survived. The registration was LCU 230, if anyone sees it, give it a pat from me!!
cheers
wakeup