Although, I mainly recondition SU carburettors. I am currently rebuilding this little Weber twin choke carburettor from a Morgan 4/4 which I am restoring for a UK client. The normal process is that I completely strip the carburettor, it then gets Vapour blasted and then into the sonic cleaning tank. Once this complete, a detailed visual inspection is carried out and all passageways are blown clean with compressed air and re-inspected to make sure all debris is removed before assembly begins using new genuine service kits. If you have any carburettor requirements, please give me a call. I keep many parts in stock for SU carburettors and some Weber parts. Items not in stock can usually be obtained within 2 days.