Originally Posted by bad2rich

What exactly happened to your lawnmower, and what kind of engine does it have? I like working on small engines, I just fixed my lawnmower, it was misfiring like crazy. Turns out it was simple, the air cleaner was clogged. The briggs & stratton engine on the lawnmower is 28 years old and runs like a top, only problem is that there is some blue smoke on startup, but I don't care enough about that. It doesn't do it while I mow.