Issue is flooding. If I let the engine burn up all the fuel out of the system by running and disconnecting the gas. The engine always seems to flood when I connect the gas hose to the system and squeeze the bulb. It is like the needle is stuck and it doesn't stop fuel form coming in the carb. After it floods if I take plugs out and take carb off and clean everything off I pump the bulb 3 times and it starts right away. I have a
Attwood Fuel Demand Valve and try to crack the tank before I pump the valve. Carb seems clean and when it does start it runs great. I can run it all day and leave it connect to the tank and it will start right up without pumping the bulb. Plugs look good, gas is good, fuel pump is fine, float is not cracked and isn't sinking, needle looks good. fuel filter is new. I just feel if I get a new carburetor that will fix everything.
Thank you for this. So my understanding is the bulb is there just to get some fuel into the engine area. I assume just enough pressure to fill the bowl of the carburetor. Once that is done the fuel pump will pull fuel as needed because it will create a vacuum. Someone told me to pump the bulb enough to where it is a little firm but my engine will flood if I do that. Could my carburetor be just very sensitive. One interesting thing that happens once it floods and I let it set for a day or so it will start up and run for about 30 sec. then die and I cannot start again. No bulb pumping or anything. I assume there is enough gas in the bowl to have it run. I assume what makes it die extra gas somewhere is pushed into the cylinder and it dies again. Only way I can get it going again is if I pull out the plugs and usually the carb and clean and dry it out. I have had gas in the air intake box/vent area at times. It just seems super sensitive to flooding. Would a new carburetor make any difference? Does anyone know where I can get one?
So here I am again in the same situation. It won't start but it doesn't look flooded. I remove the plugs and they are very black almost oily. What does that mean? Maybe my rings are shot. Looks like that on both plugs. Very black. Put in new plugs and it doesn't start. Seems like there isn't enough gas going to it so I pump until it is flooded. Take out plugs and gas is in the cylinder, pull away with plugs out and gas blows out of plug holes. Take off the carb bowl drain screw and drain out gas from bowl and pull to blow gas out. Put plugs back and and it starts right up. Gas tank is not plugged in. I plug in gas and it looks like it is sucking gas through the filter but then it stalls and will not start again. I pull the plug and it looks fine. Pump be bulb 3 times will not start. This is another problem that happens. It will not start again after it runs a few minutes. I'm done with this engine. Been putting up with it for 2 years with all these problems. I just need an engine for a Catalina 25 sailboat. Anyone have any recommendations to replace this? How much is my old engine worth if anything?
