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BSA_serial_numbers.pdf
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BSA Motorcycle History - Timeline

Historical Snippets:
BSA engines have been used in numerous machines including CCM, and supplied cycle components for many manufacturers including Givaudan

BSA History to 1914
http://www.rifleman.org.uk/BSA-early-history.htm



Mon Jun 16 2014
tsrsbs3 at hotmail.com
Model of bike and year
BSA Not sure
Serial# on transmission
A65S5232
Serial # back of Head 68-44 and 650 under numbers
United States


Sat May 24 2014
jasminegriffin19 at telkomsa.net
bsa motorcycle year of manufacture
bsa 250cc o'head valve model c11 engine no kc11926
could you please tell me the year of manufacture
heidelberg western cape south africa


Wed Mar 12 2014
JR68IOWEU1 at AOL.COM
1962 BSA  GSS   FOR SALE
BSA GSS
62 Rocket Gold Star Scrambler approx. 10K original


Tue Mar 11 2014
greg.ames at sbcglobal.net
model identification
BSA A50?
looking to aquire a 1961 BSA. Dont know what model it is. Frame #A508771 Motor #A50.A.792
Kansas


Sat Feb 08 2014
dbeadsmoore at yahoo.com.au BSA ?

Could anyone help to identify this BSA ?. Also any ideas if it worth anything as is or to renovate ? penrith australia English

More info in the BSA forum...


Wed Nov 20 2013
subnobile<at>gmail.com
richiesta scheda tecnica bsa h 20 del 47
BSA H  20 FURG del 1947 subnobile@gmail.com
Richiedo se e' possibile inviarmi scheda tecnica della moto bsa h 20 del 1947.Vi ringrazio in anticipo.


Wed Nov 06 2013
themaccas2011<at>hotmail.co.uk
1959 motorcycle
BSA A7SS
Can you please supply me with your original distributors logos for the mudguards?  Just refurbished this motorcycle and after enquiries you were the original distributors for this machine.
West Yorkshire


Thu Oct 17 2013
mdrockers10<at>hotmail.com
consulta
bsa 500cc bsaSloper
hello that such I am looking for the manual bsaSloper exploded, and is 500 cc paradsecargar have some file that I have a noce desarmaday completamenete as aj from and thanks go
buenos aires


Mon Oct 07 2013
chasgould<at>mac.com
Lubrication questions
BSA Sloper 500 single
I am trying to resurrect my 1930 BSA sloper 500 single, which I have not ridden in over a decade. When I dragged it out to fire it up again this year, I had some concerns about the oil levels in the engine and the transmission. As a result, I have a number of questions before I start to ride this old bike again.
1) The engine has a dip stick adjacent to the fill spout on the right hand side of the engine. It is a very long stick marked with a 1 and a 2. There is not a clear indication of the full mark, and I am trying to recall whether the 2 means 2 pints low, and the 1 means 1 pint low, or whether 2 is low and 1 is full. Can you please confirm the markings on the dip stick, and where the full mark is?
2) Also, there is a plug with a fibre washer on the left side of the engine casing beneath the crank. I suspected that this is a drain plug for the crankcase, but when I opened it, only a small amount of oil ran out of it, despite the fact that the dip stick is still over the 1 mark, so I now suspect that this drain plug is either clogged (I did fish a wire through there) or that it does not communicate with the reservoir supported by the filler spout and dip stick on the right side of the engine.
So, now I am confused. Exactly what did I drain out of this drain plug, and how and where do I replace this lubricant, and how much do I add (is there a level plug somewhere)?
3) There is a very small tube inlet that angles back towards the rear, on the left side of the engine, high above the crank that appears to have had a metal tab to lock a knurled wheel or knob (although my knob is missing). I suspect that this is a device for oiling the primary chain, but I am not certain what this is for.
4) Could you please provide a complete primer on all lubrication resevoirs and fill, level, and drain plugs and locations of each, for the engine and transmission on a 1930 BSA Sloper 500 single.
5) I would also appreciate a recommendation for all appropriate fluids to use in each location.
6) Finally, there is a dial indicator on a knurled knob on the right side of the engine, close to the dip stick tube. I suspect that this adjusts the amount of oil distributed to the crank bearings, but I would also appreciate a primer on how to set and adjust this meter as well.
7)   Do you have any technical manuals, or workshop manuals for this bike that you could share with me, or a source for me to acquire these manuals? I would be happy to reimburse any costs associated with reproducing them if you (or anyone else ) can assist.
I am really excited to ride this old bike, so any and all advice that can be sent promptly is genuinely appreciated.
Thank you so much.
Charles
Boston, MA, USA

Here's a video clip of the bike. Please excuse the gear crunching as I had not yet adjusted the clutch!
1930 BSA Sloper 500 Single - YouTube

......................

Thank you so much for your prompt response, as I am so excited to finally ride this bike.
I will try to take a photo or two to send you when I am next out to my warehouse, but I do not have one yet. I have sent you the maiden voyage video in the meantime!
I have made some progress since I wrote these questions.
Consequently, my inquiry has changed somewhat as well.
I have learned the following since writing my original questions.

1) The dipstick appears to be marked 0, 1 & 2, so I suspect that this references the number of pints that the crankcase is in need of. Also, I found a "full" mark on the filler port, which appears to coincide with the 0 mark on the dipstick, so I believe that I have solved that issue.

2) The plug on the left side of the engine case is still confusing me. Apparently there are two plugs with fibre washers beneath the crankshaft level, so I now suspect that the lower one is a drain plug and the upper one is a level plug. However, I am confused as to what is lubricated by these plugs as it seems to be separate from the fill reservoir on the right side of the engine for two reasons. a) The level plug appears to be considerably lower on the case than the fill line and dipstick full level, and b) why would you need a level plug on an engine with a dipstick? In either case, what does this area lubricate, and how do I fill it (through the level plug?)

3) I believe that the tube (which is actually cast into the engine case) and angled back on the left side of the engine is a device to adjust the amount of oil that is distributed to the primary chain case, but I appear to me be missing the adjuster device as there is no knob to turn, just the hole and a spring steel locking tab, which I suspect is intended to rest against the knurled adjuster knob.

4) I would still appreciate a primer on all lubrication cavities, fill, level and drain locations, and recommendations of proper lubricants for each cavity, especially the primary chain, as I suspect that the clutches are supposed to be wet, and I know that non-hypoid is preferred for wet clutches, but I doubt that these were available in 1930. I have been told that a straight non detergent 30 weight is suitable for this area? The primary chain case does not appear to be leakproof, so I am now wondering if it is intended to be dry with only periodic lubrication form the oiler described above, as opposed to being submerged in an oil bath like more modern bikes.

5) I am now reasonably certian that the dial indicator on the right side behind the dipstick, is an oil pump adjuster for lubrication of the main bearings, but once again, I would like to confirm this fact, and how to properly adjust it, so that I do not damage the engine or bearings.

6) There is also a plunger type piston on the right side of the engine which "pops" out when the engine is running. I suspect that this is an indicator for the rider to confirm that there is adequate oil pressure. Please confirm how this is used and how it is read. Does the rider reset it during riding, or would low oil pressure allow it to collapse on its own?

7) I would be extremely grateful if you could reproduce and send the manual to me.

8) proper clutch adjustment to avoid gearbox grinding when accessing first or second from neutral.

Thank you so much for your offer to help.
I also sent a separate request this morning with regard to the serial number sequence on a 1921 Monet & Goyon Three Wheeled motorcycle. I cannot properly read the first digit, and although thye bike was transferred to me with a "6" as the first digit, it appears to be a "g" or some other letter or dgit. Do you know what letter or digit these bikes typically had as the first digit on the serial number?
Thank you so much for all of your help and advice. I really appreciate it.
Kind regards,
Charles
 

Matchbox Motors Microcar, Minicar & Motorcycle Museum
c/o Charles Gould
163 Country Club Road
Newton, Massachusetts 02459
(617) 965-4848
(617) 721-9400
www.Bubbledrome.com

Sorry, cannot find a manual for this one. Try here


Wed Oct 02 2013
mecmalicious<at>yahoo.com.au
not sure of the year of my bsa bantam
bsa super bantam  176cc
does anyone know what year my bantam is? and how many where made that year? chassis no. is d76909   engine no. is  ed71131  thank you mark
brisbane australia


Tue Apr 09 2013
craft.m<at>sbcglobal.net
1972 b50ss
bsa b50ss
any info on the b50ss models or where to find info
indiana


Wed Mar 20 2013
douglas.vaughan<at>ns.sympatico.ca
How to identify year of my BSA
BSA ZB31 12934 ( frame numbers)
I have a BSA single cylinder,rigid frame and was wondering how to identify the year. Also the engine numbers are ZB33.12588
Canada


Fri May 03 2013
dmulk<at>aol.com
Head gasket for 4Cyl 1930 BSA
BSA 1930 three-wheeler
I have a 4-cyl flathead 1930 BSA three-wheeler, and before I take off the head, would like to have a head gasket available.
LAS VEGAS NV USA


Tue Feb 26 2013
onr300se<at>gmail.com
need info on 1936 bsa
bsa 500cc
Hi, I'm trying to sell 1936 bsa inhereted from father. I have no idea how much its worth, and would like to find out some info so I know what I'm talking about when I do sell it. So it hasn't been started in a long time. Also I see there's different models, I know its a 500cc but I don't know if there's and variations on the 500cc. Any feedback at all would be great. Thank you.
las vegas, nevada

BSA-1936-500cc-SV-NV



 

Feb 10 2013
Jake Halden sent this movie of winter fun on his BSA A50 flat tracker. It's a buzz!

BSA Flatracker in the snow. Short 'n sweet.


Sun Jan 20 2013
de-al<at>telus.net
1965 Photo
BSA 650
I am looking for a high resolution photo of a 1965 BSA 650



 

BSA Messages pre 2013
BSA Messages pre 2008


BSA Brigand Sales Brochure 50cc



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