bruce osborn

lawn mower will run only for a little bit only if you prime it

MY MOWER WITH A BRIGGS 5 hp ENGINE WILL ONLY RUN FOR A FEW SECONDS AND ONLY IF IT IS PRIMED, I CLEANED OUT GAS TANK, PUT IN NEW PLUG, AIR FILTER, AND HAVE NO SUCESS, ANY HELP VERY MUCH APPRECIATED

BSparks294

Did you change the fuel filter if your mower has one. I had that problem on my generator. It did not look dirty, but when I put the new one on, it ran like a champ. To check it disconnect the fuel line from the carb side (not the tank side) and see if fuel runs out of it. Hope that helps.

It could also be the float in the carb. Not a difficult job. Just unscrew the bolt at the bottom of the float bowl and clean up the bowl. Actually cleaning the whole carb is a pretty straighforward process with a "carb cleaner" can from the auto parts store.

Good luck, Brad

dirty dan

Will it start if you remove the air filter and choke the carb by hand??? Is this the engine with the carb mounted on the gas tank or a carb with a bowl on it?

bruce osborn

mower that will not run but a few seconds after priming

MY MOWER WITH A BRIGGS 5 hp ENGINE WILL ONLY RUN FOR A FEW SECONDS AND ONLY IF IT IS PRIMED, I CLEANED OUT GAS TANK, PUT IN NEW PLUG, AIR FILTER, AND HAVE NO SUCESS, ANY HELP VERY MUCH APPRECIATED

PS IT HAS THE CARBURETOR MOUNTED ON THE GAS TANK

Joe_F

You have a bad diaphragm in the carburetor more than likely, or there is dirt in the carburetor.

Get an exploded view from Briggsandstratton.com and you'll see what parts to order.

Joe_F

Is this a duplicate post? I answered it on the other question .

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Hello: bruce

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