I have been working on a 140tl79r that had been sitting for several years. I rebuilt the carbs, the water pump, thermostats and lower unit seals. It fires right up but only on two cylinders. The port side does not appear to be working. When I pull a portside plug wire there is no change. I have spark to all 4 cylinders but I swapped power packs to see if the problem would follow it. It did not. So, I would guess that I'm not getting fuel to the port side. I have replaced all the fuel lines as well. I did not get into the reed valves. Could that be where the problem is? I'm not sure how fuel is delivered to each side, but I would think that the top carb would feed the top cylinders, etc. So if both port cylinders are not firing, now what? The portside plugs are slightly damp after I run the motor and I know that they have good spark. Starved for fuel? Any suggestions would be most appreciated. Thanks.