Originally Posted by Beemerboff
Back to the carb question - are the springs above the slides still fitted ?
Not all bikes had them ,so someone may have left them off, but they help to richen the mixture in transition.
And do you have the correct needles - I spent a lot of time on the carb on my BSA B44 VS before discovering that I had been supplied with the wrong needle - the symptoms were the same as yours and the correct needle fixed things instantly .
Dont know how to check the bing ones though
i pressume your questions are for me.
yes, the springs are there. my needles are the correct, original ones but i noticed some pitting on the upper area. could be affecting fuel flow?
anyway, new needles are on their way.
as for the lean running, i will check furhter for air leaks this weekend. air leaks can only come from a few areas...