Help with carburetor please

[WAYNEWCU]

Backfiring at engine shutdown can be caused by not bringing the engine to a low idle before turning the engine off.

 

[kendeats]

Often when you replace dirty old fuel with clean fuel, it dissolves gunk from inside the fuel tank and sends it along to the carburetor, which might explain why your machine suddenly stopped working.

 

[Hammermechanicman]

Good for you! Not every manufacturer uses that term. When I grew up we often called them flat heads, but when we got corrected by the guys who had a different term we started referting to them as under head valves, for that is what they are. I've also heard them referred to as "valves in block".

I have heard all 3 of the terms. Supposedly "flathead" came from the ford V8 because of the flat heads vs the looks of other automotive engines. All the briggs literature i have seen calls them L head. If you want to work on a fun engine work on an F head engine.

 

[The Chairman]

Whatever, if the valves aren't in the head, it's pretty damn flat. Call it what you will.

 

[chunkypigs72]

Thanks bertsmobile1. Pictures attached (but they are tiny when resized to 72 dpi). I will try what you suggested later today as it is 3am right now. Not sure what seat you are talking about. I am an amature small engine mechanic. I had removed the bowl as pictured in image 5. There was a rubber o-ring seal that I removed and set aside. I had the all plastic float assembly in my hand when I shot it with cleaner. Then dropped it back in the bowl and re-set o-ring seal and re-installed. Float moved freely but I will do as suggested. What is the electric signal wire coming from the bottom of the bowl? Not a computer or anything on a mower to get the signal to say change fuel flow or something so I couldn't figure what that would be for. I will shoot some move pics from pro albums later with the float bowl off. Thanks again for all your help.

Yes i see that