It will fire very briefly if I manual work the enrichener, but won't stay running. I've been thinking it's most likely something to do with the fuel delivery, but I'm a little puzzled about where the fuel pump is. I thought it was the square-ish thing in the first picture, but when I removed it, there didn't seem to be much there. The fuel line then goes into sort of a T, mounted to a cylindrical device, and then the top of the T goes to what I assume is the carburetor(I couldn't get a picture of those, not until I remove the starter). I've never worked on an outboard motor before - they don't seem to choke the air? Instead they add more fuel during crank and cold startup? Which is actually what we do with fuel injection on cars, now, of course. I couldn't find anything that looked like a choke.