I have a 1993 Mercury 115. I have fire on the bottom two cylinders. Correct me if I am wrong, but this is normal for this motor. However, it will not stay running after cranking... not even for one second. Seems to me that it is a fuel pump problem. So first thing I did was pull the line from the pump running to the carburetors to see if there was fuel moving. There was. I did not check the actual pressure coming out of the pump, but I imagine it is sufficient. I originally had ignition problems with no fuel problems to speak of. I replaced the stator as well as the switchbox so now I have spark. This Merc is a nightmare. Not to mention the Motorguide Wireless went down too. I could bang my head against the wall. ANY IDEAS? What I have done: - Replaced the plugs and properly gapped them - Flushed and replaced with fresh fuel - Priming bulb pumps until it is tight - Checked the out line on the pump and fuel is pumping while cranking (it does). Thanks guys (and gals).