Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Engine dies ? How long does it run? How long before it restarts? This is Briggs 900 series engine?
Was the needle valve in carburetor, an all metal needle or a needle with a rubber tip? Sounds like there is not enough fuel coming into the float bowl to keep engine running.
Gas cap will not cause this. But when you replaced the needle , did you replace the rubber seat in the upper housing it seats on? Did you get it all the way in? I use a drill bit to push it into the housing until it bottom.
The rubber seat swells from ethanol in the fuel. nd that plugs the small hole, not letting enough fuel through. Use a small screwdriver or wire till you get it out, usually in pieces, clean the hole and the passage, then install the new seat, and be sure it goes all the way in to the shoulder it seats on.
I bet that will fix it! Thanks.
Did you get the carburetor fixed?