My motor stalls when moving from very slow to higher speeds, it cuts out unless you gas it quick. I've changed gas and treated it with Stabil, recently changed the water seperator and fuel filter. I noticed that the plunger cover on the carb has a small tear and was leaking a tiny amount of fuel. I also noticed that as I gave the engine gas and the just before the plunger would start to depress, that this is the point my motor would stall. Question, could this be the cause of my problem? FYI, the plugs were recently changed and the motor would run with just one plug firing. Any help?