2-cycle weed wacker sputters sour after 20 second? I have an noise 2-cycle weed wacker that has problems starting....

I have an noise 2-cycle weed wacker that has problems starting. II hold changed the spark plug, put new fuel contained by it, changed the fuel filter, checked oil/fuel ratio all to no avail. It starts, sort of, but runs at below unemployed speed and sputters off after 10 to 20 second. I really have no view what to try next, I'm not the sympathetic of person that can completely reform a small engine and am running out of ideas to fix this problem.
How to guess 220v AC near your tester?...
Answers:    Turn the low speed shot counter clockwise just a outstandingly small amount and see it it will run better. Sounds like the jet have for a while varnish on them not letting all the fuel it wants in.
How do I check the grease height surrounded...
I enjoy an ecco to and this year i did not drain all the fuel,,but i did start and run it once and awhile during the winter,,so i construe i'm good.
Get a can of laquer thinner and craft a mixture of 50 gas 50 thinner and a little grease. keep trying to carry it started. eventully it will disolve all the varnish surrounded by the carb jets.