Hi, Hoping for some advice. I'm a typical guy that can do an oil change or swap out a part on a mower/car. I have a husky with the 20 horse intek briggs engine. It was running fine. Then, upon starting, it would run rough and cough smoke for 20 seconds before smoothing out and running fine. This went on for a month. I changed the oil, oil filter, spark plug, gas filter, and air filter. It started up, sounded fine, then it coughed smoke a bit when I engaged the blade and died. Hasn't started since. I do have gas in the filter and can smell it when I choke the engine. I am getting spark. Any suggestions before I throw in the towel and look for a service guy? I heard these engines were crap. Don't want to throw good money into it if this the beginning of the end. Thanks for the help.