Yeah, I'm kidding....but I'm not kidding.....I tune my mowers by the exact Lawn Boy Mechanic's hand book procedure, so I know they're running as lean as is safe to do. I do use 24:1 oil mix, though. (TCW-3 Merccury premium plus oil, and my ports always seem to be fine when I look at them.) There ARE some days, when I come in after mowing and have a pretty strong smell from the exhaust on my clothes and skin. This is mostly when I bag, and the exhaust is shooting straight at me. They don't really "beltch;" but, on the other hand, there is a reason two strokes are becoming more phased out. I suppose that, if I were a good citizen of the earth, I wouldn't use them. But I was running two stroke mowers and outboard motors before I could drive. And I have made my living in the marine business for almost 40 years now, so me and OMC have a connection that runs deep in the soul. (For better or worse!) So I'm gonna keep mowing with Lawn Boys, mild smell or not, until they take the pull cord from my cold, dead hands.
For the record, I have been around plenty of 4-stroke mowers that have left almost the same smell on my clothes and skin. So mowing for exercise may not be the smartest thing for me to do. But I do it anyway.