Re: oil is coming form muffler at the base by the peddles
Totally normal for a 2 stroke engine running standard 2 stroke oil at recommended ratios.
Those of us who use the more exotic 100:1 oils don't have the problem, at least to the extent that others do.
I'm not advocating the use of those oils, just stating a fact. Keep a few rags or paper towles handy to wipe off the residuals and enjoy your bikes. Glad your wife is sharing the hobby with you. That must be fun.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"