I need help in figuring out why a Murray throttle-free push mower with a Briggs & Stratton 3.5 hp classic series engine has started running very rough. I replaced the plug with same number as was in it but still running like it is flooding. Engine idle runs fast then slow. My next thought is to check the carburetor for some type of trash but I am not sure where it is located unless it is what i am looking at when i remove the breather filter assembly.

Thanks

Billy wpollock82882@gmail.com

If anyone answers who is in Dallas or elsewhere and would not mind talking by phone I would be happy to call or have you call me at 214-774-2533