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Mercury 4 stroke, 4 hp flooding

graama

New member
HELP - My 2013 Mercury 4 stroke, 4 hp failed to start for me the last time I was going out on the lake. On inspection, I discovered that it was seriously flooding - to the extent that fuel was dripping out of the carburetor intake. I removed the carb, checked float and needle and blew out all jets and other openings. All appeared in order. When I tried to start the motor again, it fired a few times and quit. Pulling on the cord a couple more times produced fuel dripping from the carb intake. After repeating this remove and inspect procedure twice with no improvement, I was baffled. I just tried a brand new carburetor and once again, it fired a few times and quit with fuel again dripping from carb intake. :confused:
Can anyone suggest to me what the problem might be? If it's not the carb, is it the fuel pump? I have not inspected it. Is it possible that it is producing too much pressure and defeating the float and needle metering?
Thank you for any suggestions.
 
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