To the point, my trimmer runs like ****. Has rough run that wont adjust out via carb, (new carb) and even when carb is adjusted to best performance still floods with a rough idle and will not go high rpm if I move from sweet spot just dies completely. At idle still has a rough lick in it and wont smooth out. Any adjustment just kills it. That's on two different carburetors original and knew. Fuel lines are fairly knew. Bubble fills up. Muffler clear and port has no buildup. Spark plugs new, compression is good. Any thoughts before I flip out and use the chainsaw that does run on it.