re: Lawnmower engine experts I need help

Check the gas cap. I had a similar issue with a snow blower. I fix it by drilling a small hole in the gas cap and that fixed whatever venting issue I had.

You don’t need a mechanic to replace hoses ya turd

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Yes, I replaced that exact piece. I’m thinking it’s that hose you are talking about. My cousin is a mechanic and I’m going to get him to replace the hoses.

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test it first, just undo the hose going to the carburetor and spin the engine over, if its pumping fuel then its good and its not the problem.

if its not pumping but the fuel line to it has gas then its bad

now a fairly common thing i have found lately is fuel lines swelling up inside where only a trickle of gas gets to the carb. its enough to refill the bowl and start but as soon as its running it starves for gas. a simple test for this is unhook fuel line from gas tank and let it drain into a bowl, if its not a steady stream and just a dribble then there is a problem.

even if you dont see a problem, if you or anyone else has ever used ethanol gas in the mower then at least every 5 years you need to replace all the fuel lines