Mowin today (duh) with my 25 hp 72" that has never ever gave me an ounce of trouble and guess what..............it ain't doin' so good now. Still under warranty so no biggie. It was runnin' like a champ until I lowered my rpm's to disengage the blades. When I gave it some throttle to get back to the trailer she started spittin' and sputterin' and sounded like she was on 1 cylinder. Brought her home, pulled the plugs........OK, one was a little less than perfect but not that bad. Pulled the air filters off and cranked it again just to make sure it wasn't a "air" problem, nothing changed. Pulled the fuel filter out of the hose and gas ran through it like a cow peein' on a flat rock. Sprayed carb cleaner in the carb and managed to get her up to a faster idle, when it got there it was spitting through the muffler as if there was some gas getting through the cylinder without being burned. I kinda came to the conclusion that it might be a coil............but I ain't no mechanic. Any suggestions. I sure needed it tomorrow to mow some commercial accounts I'm waaaaaaaaaaaayyyyyyyyyyyyyyyyy behind on cause of these afternoon thunder bumpers we been having.