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It could just be a bad home repair but that much weld material has no place there .
A difficult repair becuse you have to bend a sleeve to fit inside or it will snap off again and the tube is tapered.
I always get it wrong weather they started off with long forks or ended up with the long forks.


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Decided that a good deal on another set of forks was the best solution ...

These should arrive soon

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Wade,

Where did you score the girder from and which site ?


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1971 BSA A65 650 - Project
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Ebay with a "make an offer" deal

He's got another complete one that is earlier I think and a partial one listed now


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That looks like a good find
If you are going to repint them then a dare metal strip and a very close look at the tubes where yours was welded.
That is THE spot where they seem to crack.

These old girls can get very expensive very quickly.


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Picked up some new parts

NOS headlight rim and glass with clips in packaging. two different styles of packaging ?? pre war maybe ?

And hopefully correct Ammeter and switch.


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Deleted post because it was wrong

Last edited by BSA_WM20; 05/23/22 2:56 am.

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How many thousands of these bikes did BSA make?

Even here in the USA, we see a good number of originals and restored ones.
The guys here like to ride them wearing British army overcoats if they can find them.

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Originally Posted by BSA_WM20
The amp meter is also wrong
The original one has a clamp that runs fron top to bottom
All the atermarket ones use a clamp that runs left-right


I cant seem to find any photos of what the switch and ammeter should look like . photos I find on bikes all look like different faces so obviously a lot of wrong ones being used... pay stupid money for this stuff and its wrong is not a nice feeling...


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Originally Posted by Irish Swede
How many thousands of these bikes did BSA make?

Even here in the USA, we see a good number of originals and restored ones.
The guys here like to ride them wearing British army overcoats if they can find them.

Over 126,000 units were produced during the war and most of them were deployed with the British Army. They saw service on every front for a wide range of duties including liaison and supply convoy escort.

https://www.cafmn.org/news/1939-bsa-wm20-motorcycle#:~:text=Over%20126%2C000%20units%20were%20produced,liaison%20and%20supply%20convoy%20escort.


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Originally Posted by Irish Swede
How many thousands of these bikes did BSA make?

Even here in the USA, we see a good number of originals and restored ones.
The guys here like to ride them wearing British army overcoats if they can find them.

The numbers claimed vary a bit but 175,000 is around the accepted number
Then it remained in production for another 15 years


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Originally Posted by wadeschields
Originally Posted by BSA_WM20
The amp meter is also wrong
The original one has a clamp that runs fron top to bottom
All the atermarket ones use a clamp that runs left-right


I cant seem to find any photos of what the switch and ammeter should look like . photos I find on bikes all look like different faces so obviously a lot of wrong ones being used... pay stupid money for this stuff and its wrong is not a nice feeling...

Large chunk removed because it was incorrect facepalm

I have not seen an original ampmeter for sale in 40 years
Most use an elongated terminal bolts and a strap that straddles thee two studs with an insulating sleeve
Original are brass bodied
All repos are plastic .

There is no such thing as a standard WM20
Every contract had variations on the basic theme which is what all the fuss is about the correct C number as that identifies what should or should not be there
So some had side car lugs some did not , some had air filters ( several different types ) some did not , some had side stands , some did not , some had panniers some did not. Some had rubber mounted handle bars some did not, some had a 3 position switch & others had a 4 position switch .
From memory there were a few different faces on the amp meters according to the build date and there are 2 different speedo drives .
There was a 7" headlight & an 8" headlight and several different glasses for them let alone the black out screens

So even brand NOS in original army wrapping might not be the right part for you bike

Last edited by BSA_WM20; 05/23/22 2:59 am.

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Hi All
Trevor, I am not well up on M20's but I can see a "T" position on Wade's headlight switch
I have read that that is for tail light only that was used for convoy duties at nighttime

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Originally Posted by chaterlea25
Hi All
Trevor, I am not well up on M20's but I can see a "T" position on Wade's headlight switch
I have read that that is for tail light only that was used for convoy duties at nighttime

John

Thats what they are saying over on the http://pub37.bravenet.com/forum/sta...;frmid=16&msgid=1440122&cmd=show
site. Hey we are all learning till we die... I was about to complain to the person I got the parts from for misleading descriptions ... Glad I didnt jump the gun since everything seems to be correct ... Switch and ammeter wise. the headlight rim is probably not correct but I was really only after the flat glass anyway. And the rim/glass were really cheap so Im ok with that. If all else fails Ill use it on my 31 sloper maybe


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you have a sloper?


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Originally Posted by kevin
you have a sloper?

Yeah a 1931 SV project . Motor is apart but kind of a roller with most of the parts in boxes. But the frame and tank are painted. Need the decal/pin stripping for the tank though. Im sure a lot of other parts are missing too. I might try to mock it up this summer if I get a chance. I definitely need an exhaust pipe but I do have the silencer


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i love those things.

i know you must have pictures. put some up.


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If that is a real 1931 model H 550cc side valve then you have a very rare piece of iron there Wade
However if it is a 1929 / 1930 500cc model S first registered in 31 not quite so rare but a lot easier to get parts for as they seemed to have made a lot more model S although most were OHV so the side valve is again not all that common.
But surely you would put the optional Lucas 420 acetelyene headlamp on it rather than those vulgur electric things . I mean electricty on a motocycle how silly, never work in the wet .


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Originally Posted by BSA_WM20
But surely you would put the optional Lucas 420 acetelyene headlamp on it rather than those vulgur electric things . I mean electricty on a motocycle how silly, never work in the wet .
I think electric lighting was an option on those flashy "Sloper" thingies from very early on. All the better for the Promenade Percies to impress the Flappers with their modernity.

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Arh poo ,
Electricity
It will never catch on
Lights were optionsl extras
£ 2 for the reliable gas & an outrageous £ 5 17s & 6d for that elecric thingy
Both packages came with bulb horns so the flappers mad could always come over to give your horn a squeeze facepalm

Last edited by BSA_WM20; 05/25/22 1:31 pm.

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BSAOC checked and it is indeed a matching engine/frame built for model year 1931 initially dispatched to Valparaso on 12/05/1931 as a model S31-7


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Originally Posted by kevin
i love those things.

i know you must have pictures. put some up.

https://www.britbike.com/forums/ubb...what-i-need-another-project-o#Post840918

Hopefully I can add some updates this summer


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Interesting the 31 catalogue only lists the OHV S in both single & twin port congfigurations as slopers S 31-9 & S 31-10 respectivly
no indifcatoion as to weather the -7 was vertical or inclined which generally signifies it was vertical ( ie vertical & SV unless otherwise stated )
So yet another side note to add to the catalogue as the S31-7 listing is not illustrated just describled with no mention of the cylinder orientation.


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