I Hate these new stupid briggs plastic carbs, two in a row I had come in....cleaned them up and the engines surge. One was just fine....fired it up today after a few days sitting and the dumb thing is surging again. Entire fuel system was cleaned and flushed. Well, least if they both need new carbs I can get them for $42. But it sucks that they won't run right. Have to do some more investigating I suppose. Who'd a thought that carbs would ever be made of plastic.
Also went through the fuel system on an MS210, new carb, filter, and spark plug and she runs like a champ. Least That carb wasn't plastic! lol