[bandito2]

Well it sounds like you just had over filled it with oil then.... Good that there was not a gasoline smell to the oil.

Not sure how the air plumbing and all works on your scoot, but if it was overfilled with oil and there is crankcase ventilation that gets redirected to the air box where the air filter is (if your scoot has that sort of arrangement) then its is possible for the air filter to get saturated with oil and maybe even have oil come out of a drain on the air box or leak from the crankcase venting somewhere and drip on the hot engine making it give off an odor.

If the crankcase venting was plugged, then it would be possible for pressure to build and then be released and push out oil when you removed the dipstick..... even if you did not overfill it with oil.... An odd scenario, but possible I think.