John Newman Posted January 21, 2019 Share Posted January 21, 2019 I have a pair of Amal 76/187's from BSA's 1938 350cc B.24, 25 and 26, both of which need parts and rebuilding. Does anyone know of anyone in the UK that rebuilds these carbs? I'd like to keep these because they have the vertical stud pattern and the reproduction carbs have the horizontal stud pattern and I 'd rather not use and adaptor and keep as much period original on the bike. They were found in a basket case 1938 BMW R12 project I have. Thanks John Quote Link to comment Share on other sites More sharing options...
smiffy Posted January 21, 2019 Share Posted January 21, 2019 Try this company http://amalcarb.co.uk/ Quote Link to comment Share on other sites More sharing options...
welbike Posted January 21, 2019 Share Posted January 21, 2019 Martyn Bratby still does very good work, takes some time, but worth the wait, no email or computer, Ron will have his phone number handy? below a carby he did for me. Cheers, Lex Quote Link to comment Share on other sites More sharing options...
John Newman Posted January 21, 2019 Author Share Posted January 21, 2019 Thanks for the responses. I took the carbs to Michael at Surrey Cycles. He is going to get the missing parts together and get them to Martyn to work his magic on them. Regards John Quote Link to comment Share on other sites More sharing options...
Ron Posted January 21, 2019 Share Posted January 21, 2019 (edited) Best to go straight to Martyn Bratby on 01543 572583. Amal won't refurb your carb. They will sell you new parts or a complete new modern carb. Surrey Cycles and Hitchcocks are selling new Amal products too. Ron Edited January 21, 2019 by Ron Quote Link to comment Share on other sites More sharing options...
welbike Posted January 21, 2019 Share Posted January 21, 2019 Yes, and Martyn doesn't like the quality of their parts..... he makes his own, usually cheaper too. Cheers, Lex Quote Link to comment Share on other sites More sharing options...
cbranni Posted January 23, 2019 Share Posted January 23, 2019 Seeing that BSA B 26 was mentioned in first post I thought I might show mine off here, not military I know but for a 1938 bike it performs really well even in today's traffic and I love it. 2 Quote Link to comment Share on other sites More sharing options...
John Newman Posted January 24, 2019 Author Share Posted January 24, 2019 Lovely bike. Can you tell me which type of Amal is has. According to references it could be a 76/187. Is the head inlet stud pattern horizontal or vertical? John Quote Link to comment Share on other sites More sharing options...
cbranni Posted January 24, 2019 Share Posted January 24, 2019 Hello John, the carb is a 6/187 I believe, (I can't get close enough to check the number) when I found the bike it had a standard carb with horizontal fixing holes using an adaptor plate which looked awful so I bought a vertical fixing carb off ebay which looks and work great. Never quite understood why BSA used the horizontal carb on these models, maybe because they were early OHV engines and room for the cables under the tank was an issue. Float level is also very important mine runs best with slightly lower level. Quote Link to comment Share on other sites More sharing options...
Ron Posted January 24, 2019 Share Posted January 24, 2019 Was the horizontal carb to avoid fowling the magdyno? Some makers used a long throat carb to get past the magdyno. For instance when BSA converted the standard coil ignition C11 to magdyno for the military version for the India office, They swaped the carb for a horizontal type, simply because the standard carb wouldn't fit any more. Ron Quote Link to comment Share on other sites More sharing options...
cbranni Posted January 24, 2019 Share Posted January 24, 2019 You are right Ron the mag would foul the carb and of course there were many makes of bikes which had inlet manifold extensions. Coln Quote Link to comment Share on other sites More sharing options...
John Newman Posted October 4, 2019 Author Share Posted October 4, 2019 Carbs back from Martyn, absolutely brilliant job. Coln, quick question - I now have 4 cables to manage. I can get a two cable throttle set up, but the other two are choke? Regards, John Quote Link to comment Share on other sites More sharing options...
Ron Posted October 4, 2019 Share Posted October 4, 2019 Forgive me John, I might be missing something here! Does the carb sit in the standard vertical position, but with a vertical stud pattern? I initially thought you were talking about the horizontal carb like this one.......And why two carbs? Ron Quote Link to comment Share on other sites More sharing options...
matchlesswdg3 Posted October 5, 2019 Share Posted October 5, 2019 4 cables? Choke, throttle, timing and decompression? Normally. Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted October 5, 2019 Share Posted October 5, 2019 1 hour ago, matchlesswdg3 said: 4 cables? Choke, throttle, timing and decompression? Normally. Hi Ferg, I think John is referring to two choke cables and how to operate them together. From his initial post these are for a 1938 BMW project. regards, Richard Quote Link to comment Share on other sites More sharing options...
Ron Posted October 5, 2019 Share Posted October 5, 2019 Sometimes the typed word is not enough. All along I though he was talking about a 1938 BSA. Ron Quote Link to comment Share on other sites More sharing options...
matchlesswdg3 Posted October 5, 2019 Share Posted October 5, 2019 Blimey, Amals on a Beemer! Its like Heinz Tomato Ketchup on a haggis! Pass the smelling salts....... Quote Link to comment Share on other sites More sharing options...
cbranni Posted October 5, 2019 Share Posted October 5, 2019 Hi John To run two throttles or air slides from one cable you need a junction box, ie. one cable in two out, as per Amal part, link below. http://amalcarb.co.uk/controls-cables/junction-boxes.html Kind regards Colin Quote Link to comment Share on other sites More sharing options...
John Newman Posted October 7, 2019 Author Share Posted October 7, 2019 Thanks Colin, that's exactly what I need. I do not want to upset people but Amals (6/406 & 6/407) were the original equipment on the twin carb R12's - see picture. They are very expensive to buy (£2k+) and the 76/187's from the BSA 1938 350cc B.24, 25 and 26 are a vertical pattern bolt holes that fir the R12 cylinders. They came with box of bits that was the project and I'd like to believe someone swapped the old Amals (which I've been told were not very good) for a set of war time BSA carbs. Does this make the bike a BSAMW? Quote Link to comment Share on other sites More sharing options...
Ron Posted October 7, 2019 Share Posted October 7, 2019 Makes sense to me now John. Probably makes it a BSEAMER😏 Ron Quote Link to comment Share on other sites More sharing options...
John Newman Posted October 7, 2019 Author Share Posted October 7, 2019 Very good Ron, I can at least get some parts for my BMW from the UK come Brexit! Quote Link to comment Share on other sites More sharing options...
Rolf Posted August 3, 2020 Share Posted August 3, 2020 I need a Carburettor 76/187 to my BSA Silver Star 348 cc by 1939! Any idea? Please, help me!!!! rolfmalmqvist6@gmail.com i come from South of Sweden’! Best Regards!!!! Quote Link to comment Share on other sites More sharing options...
Chris Hall Posted August 7, 2020 Share Posted August 7, 2020 How much do you want to pay and how desperate are you? you could buy one now from British only Austria for 150 euro or wait for one on eBay or a auto jumble for a fraction of that. https://www.vintage-motorcycle.com/en/parts/carburettor-bodies-used/carburettor-76-187-used Quote Link to comment Share on other sites More sharing options...
Chris Hall Posted August 7, 2020 Share Posted August 7, 2020 The other option is to buy one of the same pattern and ask Martin Bratby to convert it to the correct spec. It wouldn’t have the correct number but as it will likely need a full rebuild it may work out cheaper and quicker. Quote Link to comment Share on other sites More sharing options...
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