I am having a rough time tuning the carburators in my Morgan +4. I have idle going and am trying to adjust the mixture at each carburator. According to all the books you should be able to turn the jet nuts one way or the other and get an increase in speed or a falling off when you lift the needle. In the adjustment you are to take it right to the point where there is a 50 rpm increase and then a dropping off. I adjust the damn things, and there is never any increase in speed. It is very frustrating. Does anyone have any ideas what's going on?
Last edited by Vitruvius; 09/09/13 04:17 PM.
