Any weed-eater guru's out there?

ill try a new plug and see.. the mix is pretty good it works in my other weed eater but they are just to danm heavy for my lol...this weed eater is the baddest i have ever owned i use 085 line and it never dies in tall grass or weeds even had the blade on it a few times and still ran like it was the line init...i have tried a few diff. kinds and the tanka has been on my top list as the best..got 2 backpack blowers i need to try and start up this year havent started them in about 3yrs man i got to much junnk thanks guys mike