flooding

Hi I am having some trouble with my 2094 flooding (fuel comes out muffler). I rebuilt the carb still floods out a new oem carb on it still floods checked the metering it was correct even lowered it still floods turned the h and l all the way in still floods. If I take the fuel line off it fires...

Several times now it has not been the carb. Trimmer, hedges chain saws. Runs fine the first year then trouble starting and eventually stupid working altogether. Each time it ended up being the spring spark plug clip. The darn thing has a bend where the wire in the clip pokes through the...