I don't know the Stihl ratio but the gas/oil mix for my Husky's (50:1 I believe but that's from memory) is just a very light blue.

Also... gas from flooding can kill a new spark plug.

Try a spritz of ether right into the cylinder via the plug hole. Put the plug back it and rip the cord. If it STILL doesn't even cough, it about has to be compression.

The CENTER will hold.

Reality, Patriotism,Trump: you can only pick two

FÜCK PUTIN!