myson Posted November 16, 2009 Report Share Posted November 16, 2009 (edited) Hi, need advice on replacement carb for M-80 sherpa. Would an amal Mk2 be suitable and any ideas on jetting, also can you get an adaptor for flange as Mk2 is just a circular fitting? Cheers, Myson Edited November 17, 2009 by myson Quote Link to comment Share on other sites More sharing options...
myson Posted November 17, 2009 Author Report Share Posted November 17, 2009 Hi I have changed this post as I have located a Mk2 26mm carb, will it fit M 80? Cheers Quote Link to comment Share on other sites More sharing options...
bultaco49 Posted November 17, 2009 Report Share Posted November 17, 2009 Hi - If your going to replace the carb on your m80 I would recommend replacing it with a new carb. Those Amals wear the slide out pretty quick and unless you are lucky a 2nd hand carb will probably never tune properly for slow running. Also the choice as far as I am concerned is for either a concentric Mk 1 625 amal fitted with a 3.5 bronze slide if you wish to remain authentic or a ready jetted Mikuni from Bultaco Uk which will give a better performance. The Mk 2 has no advantages that I have experienced. Quote Link to comment Share on other sites More sharing options...
myson Posted November 17, 2009 Author Report Share Posted November 17, 2009 Thanks for reply, I cant find a 625 but the 626 should be ok I think, is Quote Link to comment Share on other sites More sharing options...
bultaco49 Posted November 17, 2009 Report Share Posted November 17, 2009 Sorry myson, I made a mistake in my original post. I meant a 627 carb. Some were originally supplied with a 625 but most have been upgraded and as you found out, the 625 is unavailable. Quote Link to comment Share on other sites More sharing options...
myson Posted November 18, 2009 Author Report Share Posted November 18, 2009 Thanks for all of your help, I will get new carb as advised myson Quote Link to comment Share on other sites More sharing options...
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