BSA Owners' Club Forum

The BSA Workshop => Twins => Topic started by: TTJOHN on 09 February, 2017, 09:23:51

Title: Float level on a 930 carburetor
Post by: TTJOHN on 09 February, 2017, 09:23:51
I have a 1963 A65L which is running but I cannot seem to get it to tick over correctly, now I believe someone told me some time back that the float level in the 930 concentric carb is critical so I made up a tube so that I could see what the level was, turned out that the actual level was roughly 1/2" below the joint of the bowl, I think, if my memory serves me right that someone said it should be 1/8" below he joint.
Am I correct in thinking that the later level should be correct and that I should try to adjust it to that sort of measurement?

Regards TTJohn
Title: Re: Float level on a 930 carburetor
Post by: JulianS on 09 February, 2017, 09:55:03
John

Its worth looking at this from Amal;


http://amalcarb.co.uk/optimising-mark-1-concentric-fuel-levels
Title: Re: Float level on a 930 carburetor
Post by: TTJOHN on 09 February, 2017, 13:22:35
Thanks Julian, I guess that could be the answer to the problems, hopefully. :)