I tried to mow yesterday but the needle valve in the carb let all the fuel in the tank fill up the whole engine with gasoline! was fine when I ran it last, ran great, put it away, and now this.. Drained the oil, it was FULL of gasoline! About 5 or 6 quarts of it in the crankcase, pulled the plugs and rolled it over by hand, both cylinders full of gas, pumping it out the spark plug holes, muffler full of gas, GLAD I never cranked the engine! 21hp Briggs v twin would have been TOAST in about 4 minutes!
I checked the oil, and noticed it was about 2" above the full mark on the stick, and I thought well, I might have overfilled it last time, but it didn't look right. And the dipstick made a squeaking sound when I wiped it off with a shop towel, then I dipped it in the motor again, and smelled it, sure enough smelled like gas. Rubbing it between my fingers it was really thin feeling, not like oil should feel. And I was ALMOST ready to assume I had overfilled the crankcase, and run it anyway....