Check the screen in the carb too sometimes funny stuff from the fuel cans gets gunked up there, looks like snot but not easy to spot. Good luck.
Anthony,
Out of curiosity, Some guys have found this snot like stuff to be from the plastic "gas cans" can you check the carb screens in another saw that you ran from the same gas can . Its not from the e10 gas but might be from the plastic jugs themselves. Send the carb up my way I'll give it a whack in the USC fer ya...
Don't forget to check the fuel filter too.