Cause there is possibility that flooding carb can cause oil contamination with the gasoline - is it necessary to change engine oil? I just got mine freshly new 2 day before this happened?

Hi guys, brief update.

I checked and drained some oil. There is no smell on gasoline, and the colour is healthy (new).

Few days after I notice during ride that at the beginning of 4th gear I have no power until 1/4 throttle. After that power is back but not the sound I used to hear from my Suz.

Today I screw out (opposite clock wise) for 1,5 round, the mixture screw (right side of carburettor, just before intake in cilider. After this adjustment I don't lose anymore power in 4th and 5th gear. So I guess it was rich on idle jet.

Will let you now should there will be any changes after few hundred miles.