My mower was purchased in 2020 and has performed well up until early this year. It's been exhibiting intermittent problems like surging, misfiring, blowing smoke, etc. The latest problem is intermittent as sometimes it will start up and run perfectly and other times it will misfire and won't rev or operate properly. I have replaced the carburettor, spark plug, air filter, cleaned out the fuel tank and the fuel lines. I am now thinking it may be a faulty magneto or auto choke. What do others thin?
