duckweed
Member
I have a 1991 Mercury 40hp that has been sitting up outside for over 10years. I cleaned all the dirt dobber nest off. I removed the spark plugs and filled the cylinders with pb blaster and let them sit over night. The starter was rusted together and would not spin, I removed it and broke it loose using some pb blaster and a wrench. It is now spinning again, although not at what I would consider full speed but it is enough to spin the engine. I replaced the water pump. The fuel filter has been replaced too. I finally hooked it to a tank of fuel and primed up the bulb, the engine fires off but goes dead shortly after starting, also the fuel filter is not filling back up. I am guessing the next step would be to replace the diaphragm in the fuel pump and while I am at it go ahead and replace the fuel lines. Do yawl think the next step is the fuel pump or is this a carb problem? I went ahead and ordered a diaphragm kit.