Lawn Mower Overflow

If oil is pouring out not from a leak, or oil level is up and flows out when you remove the cap to check it, your Float is likely stuck , if that happens gas enters the motor, diluting the oil, ruining the engine. Rebuild carb, or simply put a 1$ inline gas stutoff valve in.

What the fffff....? Troll? That makes no sense.

Yep, happened to me on a one year old rider (18 HP Briggs). Fortunately so much gas poured in that it hydro locked and clued me in rather than running with a crankcase of diluted oil. The starter would grunt but couldn't turn it over. Mucho fun draining everything (no convenient gas drain), no shut off, crankcase full, cylinder full. Touchy part was pulling the plug and hitting the starter to empty the cumbustion chamber. I made sure the plug was well shielded and not grounded. Installed a shut-off after the clean-up. Just have to remember to shut it off when finished using.

Harry K

If you take notice, the carb manafold runs downward to the intake valve. If they had reversed the exhaust/intake ports the fuel overflow would not be as serious a problem. Maybe a little different problem but wouldn't contaminate the oil. The float needle valve seat is simply a rubber O-ring type of thing. Very replaceable. I put a shut off valve on the fuel line as a quick fix rather than removing the carb. Then I reasoned a blast of air into the fuel line would plow the bugger out of there. I removed the float bowl, float and needle valve. Then I put a clean white rag below the carb and let blast. Sure enough, heard a pop and there it was in the rag. The replacement rubber seat for my engine had a right and wrong side for installation. It is a PIA getting the new one fully seated.