Author Topic: Engine numbers  (Read 707 times)

Offline jawthree

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Engine numbers
« on: 20.03. 2015 20:02 »
Thank you for accepting my membership to this board.

I have the chart with the engine and frame numbers for BSA A7 and A10s. But I cannot figure out what exactly I am looking at. The Bike I am looking to buy is listed as a 1956 Golden Flash A10. I asked for the engine and frame numbers  CA10 42XX engine and CA7119XX frame. I would assume that it was a 1954 motor and a 1955 swing arm frame. I own a 62 GS and it was not that difficult to decipher the codes to see if they could have left the factory together. This one presents more of a challenge. Can anyone give some insight on what I might be looking at?

Thank you!

Online muskrat

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Re: Engine numbers
« Reply #1 on: 20.03. 2015 20:12 »
G'day jawthree  *welcome*.
I think you have one X too many in the frame #. CA10.42XX and CA7.119X = 1954 A10 (s/a).
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Online KiwiGF

  • Last had an A10 in 1976, in 2011 it was time for my 2nd one. It was the project from HELL (but I learned a lot....)
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Re: Engine numbers
« Reply #2 on: 20.03. 2015 20:23 »
Hi my numbers are for a 56 see below for details.
New Zealand

1956 A10 Golden Flash (1st finished project)

1949 B31 rigid “400cc hot rod” (2nd finished project, + favourite bike)

GL1800 Goldwing, well, the wife likes it

KTM 950 ADV, cos it’s 100% nuts

1952 Armstrong Siddeley Whitley for rainy days (with wife)

Offline oldbeezageezer

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Re: Engine numbers
« Reply #3 on: 21.03. 2015 18:59 »
Hi KiwiGF

I last had an A10 1967 and got my second one 2014. way too long a wait.

Re engine numbers, you say yours left BSA for Liverpool. How did you find this out? is there a link on this site or a web address for engine/model info?
1954 A10
1972 CB 350 K4
YAMAHA XV750
1999 CBR600

Online KiwiGF

  • Last had an A10 in 1976, in 2011 it was time for my 2nd one. It was the project from HELL (but I learned a lot....)
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Re: Engine numbers
« Reply #4 on: 21.03. 2015 20:21 »
hello obg, this link has details of how I found out the despatch info from the vintage motorcycle club uk. You waited for your next bsa even longer than me  *eek* now I have 2 (I have a b31 in bits as well) but I think that will be enough old bikes for me  *whistle* and wife  *rant*

http://www.a7a10.net/forum/index.php?topic=4659.msg31756#msg31756
New Zealand

1956 A10 Golden Flash (1st finished project)

1949 B31 rigid “400cc hot rod” (2nd finished project, + favourite bike)

GL1800 Goldwing, well, the wife likes it

KTM 950 ADV, cos it’s 100% nuts

1952 Armstrong Siddeley Whitley for rainy days (with wife)

Offline oldbeezageezer

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Re: Engine numbers
« Reply #5 on: 21.03. 2015 20:38 »
Thanks for the link kiwi
I had a B31 as well. Absolutely loved it. Such fun and never let me down even got me to work in the snow back in '71. eventually went to the garage one morning to find I had a flat tyre, then the insurance was due, daughter had just been born and skint so had to sell it. Buttttt, it's next on my list.
1954 A10
1972 CB 350 K4
YAMAHA XV750
1999 CBR600

Online morris

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Re: Engine numbers
« Reply #6 on: 21.03. 2015 21:27 »
Hi and welcome jawthree.
Oldbeezageezer, BSA owners club have some explanation and frame/engine numbers on their website;
http://www.bsaownersclub.co.uk/Engine_Frame.html
'58 BSA A 10 SA
'52 BSA A 10 Plunger
'55 MORRIS ISIS
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