Hello everyone

I am having trouble because when I take off my Toro 26cc seems to be well carburated, but when I take off it goes way to rich.

Yesterday I noticed as well that when I invert the plane (cilinder pointing to the ground) and therefore tank is higher than the carb theres some gas dripping.

Could this be that the carb membrane is not OK....I check it and it seems stiff

Would it help to leave it 24 hours soaked in gasoline to have it less stiff?

Thanks for any help

Victor (Oddy)