I have a 1993 25hp Mercury outboard that has fuel delivery problems off and on. Sometimes it runs flawlessly, but sometimes it stalls out and I have discovered that if I pump the bulb on the fuel hose it works fine. I don't think there are any leaks in the fuel line, at least I can't hear any air when I pump the bulb. My first thought is to just replace the fuel tank, hose and the diaphragm in the fuel pump, but that will be over $100 and maybe a waste of my money. What would you start with? When the motor is off and I pump the bulb, sometimes I can get the bulb hard, but sometimes it just doesn't seem to pressure up.
Any ideas folks or should I just suck it up and replace all three of those items and be done with it? I checked the fuel filter and it's clear and free. Thanks!
Any ideas folks or should I just suck it up and replace all three of those items and be done with it? I checked the fuel filter and it's clear and free. Thanks!