I have a problem with my 5 HP Nissan outboard. It came with my boat last summer. It has never run smooth. I took the engine to get it tuned up with no improvement. The engine did not improve. I learned that I knew as much about small boat engines as he did, which was not a lot. That lesson only cost me $50.00.<br />I have checked the oil, changed the spark plug, added some dewatering treatment, checked the carbeurator(very clean). As a matter of fact, the entire engine is extremely clean. I can get it running but it chocks itself out if I let it run for a while. When it shifts it into FWD it almost always dies. There also seem to always to be an excess of fuel going into the engine (gas on the water). After some more work, I tried the obvious, I started the engine with the hood off. Although the engine was running well, fuel was coming out of a hole on top of the carbeurator. I assume this is some type of discharge. Fuel started coming out when I started the pull starter and seems to continue when it is running. Anyone out there seen this before or know what I need to do next? I am a sailing guy and this is my first outboard. Any help would be appreciated.<br />... 
I talked to another local expert, and he said that it sounds like I have a blown gasket in my carbeurator and need to replace it or have it re-built. Does this sound right to anyone else? Does anyone know where to purchase a new or rebuilt carbeurator? What should it cost me?
I talked to another local expert, and he said that it sounds like I have a blown gasket in my carbeurator and need to replace it or have it re-built. Does this sound right to anyone else? Does anyone know where to purchase a new or rebuilt carbeurator? What should it cost me?