Hi, I bought my Ariens 28 in deluxe snowblower in November 2016, I used it for about 4 storms and probably did about 8 jobs each storm. I put away for the winter, not preparing it appropriately...I didn't drain the gas, etc. This winter I prepared it, drained the gas, had the carburetor cleaned up, new spark plug, oil change, greased fittings. First storm, at least a foot, it worked fantastic for the first hour and a half, then I put it under load and it died, the whole machine. Started up rough but then it died again. Then I left it out overnight, it got a little snow on it, started it up fine, but then ran an awfully small amount of snow through it and it died once again. Really wacky, heard I should change my ignition coil, any ideas?