Flooding isn't usually a concequence of anything to do with the Jet, it is a concequence of a poorly seated needle valve. The valves on pre war carbs as illustrated above are particularly prone to leakage.
If your carb has the very early flat top float chambers fitted the only thing you can do is make sure that everything is in tip top condition & keep your fingers crossed. If anything is worn or damaged then there is very little that can be done. Some bits are available from Burlen Fuel Systems, but not everything by any means.
For day to day driving the very best solution is to replace the flat topped float chamber with the later "H" series domed float chamber that has a MUCH better needle valve fitted. While this is not 100% correct, it will undoubtedly solve your problem permanently.
![[Image: b100256d3d1244e5-IMG_1245.JPG]](http://media.virbcdn.com/cdn_images/crop_300x169/fd/b100256d3d1244e5-IMG_1245.JPG)
If your carb has the very early flat top float chambers fitted the only thing you can do is make sure that everything is in tip top condition & keep your fingers crossed. If anything is worn or damaged then there is very little that can be done. Some bits are available from Burlen Fuel Systems, but not everything by any means.
For day to day driving the very best solution is to replace the flat topped float chamber with the later "H" series domed float chamber that has a MUCH better needle valve fitted. While this is not 100% correct, it will undoubtedly solve your problem permanently.