No matter what adjustments I did to timing, the mixture screw, throttle speed, new plugs, etc, I could not keep my Midget from stinking like exhaust so badly that it would get in my clothes and hair and made me want to not drive it.
Finally solved the problem today: it all came down to the restrictor (or lack thereof) in the hose between the carb (Weber DGV) and the valve cover. Put a 5/64 restrictor (wooden dowel with a hole drilled as per a suggestion from someone here) in the line and voila! the stank is gone.
Now that I understand the mechanics of it a little better, I cringe at thinking about how much oil mist I must have been sucking into the carb! Probably time for a good carb cleaning now.
Exhaust stink finally solved!
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