Year of registration query

[Nomad54]

Hi guys first timer on the forum so apologies if I'm doing it wrong. I have recently inherited my late cousins 1963 a10a gold flash. It was registered in April 1963 and has a suffix B on the number plate.
I may be wrong in thinking that B should 1964. There is another query that the frame number shown on the documents starts with GAY not GA7. It looks like somewhere along the line DVLA have botched things up as I have old mot's and service records with the correct frame number.
I am also struggling to find info on the 12volt alternator models as I believe this was an ex police bike.
Any info regarding these subjects would be grateful and would allow me to restore the bike to original
condition.

[JulianS]

I suggest that you apply to the Club Dating officer for a Dating certificate and ask about your registration matter.

https://www.bsaownersclub.co.uk/machine-cert

I dont think there is any service literature specifically for the alternator equiped DA10A engined models. Most of nthe service stuff will be the same as the non police bikes and the electrical equipment will be period Lucas.

You will find a non illustrated parts list for the DA10A alternator jobs in the back of the 1960 on parts book.

The exact equipment fitted at the factory would be as ordered by the Chief Constable of the Police Force in question and the Police livery, fairing if required, radio etc would likely have been fitted in the Police workshop at the Force.

Here are some images fro the 1961 Police catalogue

[Nomad54]

Hi JulianS
Thanks for getting back to me. I have contacted the club and found out that the bike was shipped to
Wellington police in April 1963. When I read the page from the police brochure it said the bike used the dynamo to run the bike and the alternator to run the police equipment. It looks like someone through
time has done away with the dynamo and converted all running gear to 12volts via the alternator.
Can you advise me where you got the police equipment brochure as I am trying to restore the bike
back to original police spec.

[JulianS]

I will send you a PM.