01-10-2023, 01:08 PM
My semi-updraught SU has a spacer and longer fixing bolt that a friend kindly machined for me. It was made so that when the carb was set up on the bench at its correct angle, the fuel level in the float chamber was exactly the same as the bridge in the carb inlet. I think that the fuel level in the float chamber should perhaps be a bit lower but before I do anything drastic I will run the engine up to temperature and see what happens when I switch it off.