73 TR7RV with a Amal 928. Since I first got it running I could not make it run lean at all. Always too rich(Reading in the book 1.5-2.5 turn out to start). I tried puttin in a .170 jet and re-adjusted everything several times. After turning the air mixture screw(the horiziontal one) all the way IN. It is still running rich. Recently I read that if you have the adjustment screw ran all the way in and it is still running rich, the screw is too short. Has anybody dealt with this, or do they know the right part number???? I could just order another one, but then I already have three and they are all the same size. I have a coulple of Amal 930 bodies but they are the same size. I wonder if the 928 takes a longer adjustment screw and the one I have are from a 930 or 932??.
TangoMike
TangoMike