Thanks for the comments. Here's the final bits of the story;
I rode my chopper until 1982 then bought a 1977 Sportster.
I stored the BSA, I would start it up once in a while.
One year it didn't start so it just sat there from then on.
In 1994 the building that the Sportster was in burned down.
The A10 had been stored in another building.
Didn't ride at all after the fire.
I'm self employed and don't have much work anymore, so last Fall (08) I decided to fix
up the old bike. I intended on selling it.
It needed paint,a battery, a generator and some TLC.
Pulled the plugs.. they looked good. Checked the points... nearly new.
Carb was full of gas varnish, tank too.
I used lots of Gum Out and some acid in the tank to remove the rust.
I put in some fresh gas, kicked it three times and it was running!
It had not been started in at least 15 years!! (stored in a heated building).
Rode it around the yard and began to get the old feeling back, you know what I mean, used to call it bike fever.
I decided that I had the bike for all these years how could I possibly part with it.
So, last winter I tore it down to the frame and gave it a new color.
The motor had only about 4000 miles on it since the rebuild, so I didn't touch it.
Found a new 6v battery at a Harley dealer on sale for $5.00.
Found a NOS armature for the generator on EBay.
Put it all together and licenced it this year for the first time since 1982.
All my biker buddies have Harleys, I couldn't believe how much interest my
old bike has brought from the Harley crowd.
I pulled into a local bikers event with some friends of mine.
There must have been a couple hundred bikes there mostly stock Harleys.
As soon as I parked many people began to motate my way (mostly younger fellows).
Taking pictures and asking many questions, like "What is that?", "What year is it?" etc.
Not many custom bikes around this area any more. No BSA around here at all.
I felt like a kid again, guess you could call it my second childhood.
Rode a lot this summer, didn't have a bit of trouble.
90% of the time it starts first kick!
It handles great, not squirrely at low speed, doesn't "flop" at stop lights.
Rock solid going down the road.
I run 12 lbs in the rear tire that gives a little cushion for the bumps.
I have given some thought to a sprung seat, not sure yet.
Cold weather has come, so last week I decided to tear down the tranny.
I had never had it apart, doesn't look too bad but needs a few parts.
trevinoz, no I didn't keep the parts. 37 years ago I didn't know it would be a rare item.
Now it is hard to find parts in the US.
I went to a yearly national swap meet.. not a single A10 there and only three A65s!
Can't afford to buy the stuff to restore it.
Tough times here in Michigan for many people. (I've been out of work for almost two years).
Here are some pics as it is now.