Lawnmower Problem ?

Assuming fresh gas, the gas cap vent isn't plugged and the gas line valve is fully open:

Will it keep idling if you don't touch it? What happens if you speed up the engine manually?

some kind of safety switch issue? m

replying to Bob, Iggy wrote: I'd take a look, stab and a blow at your Fuel Cup's Jet Bolt, the round thing under the carburetor that has a big bolt (the Jet Bolt) in the center. This is exactly how a partially clogged Jet Bolt's jet "performs"...a particle from the fuel tank got in.

- Just remove the Jet Bolt and the Fuel Cup to clean both. Many times you can just blow the Jet clear, you'll hear a pop as it shoots out and suddenly be able to blow through easily. Or, you can stab it from both ends and loosen the debris, to then blow it clear.

replying to Bob, Iggy wrote: It sounds like your Fuel Cup Jet is partially clogged. Find that little round bowl under the carburetor and remove its center bolt, that bolt's the Fuel Cup Jet. Many times you can just blow the blockage out and other times you'll need to ream the 2 holes with a pin or fine wire and then blow it clear (you'll hear the blockage shoot out). Also, clean out the Fuel Cup as well. Yes, there's a filter in the gas tank, but it doesn't catch everything and emptying and flushing the gas tank may not ensure avoiding the problem in the future.