I have a miss at idle and dont feel like it is opening up all the way when going up the lake. I have checked the compression an it is 140 psi and 120 psi on the other cyclinder I just rebuilt the carb but dont know what to adjusted the lean - rich screw to and I am trying to figer out how to test the coils + stator and how can I check the fuel pump does any one have answers to the ?s Thanks