try settin the float way earlier than level with the carb body, thats how mine is liking it now, go you tube and search for carb tuning or float level, thats where i found a float level video about using a spare hose to blow through and run the float up and down to figure out where it's opening and closing, but im thinking im just reducing my fuel level to compensate for some kind of rich situation that i dont understand, im runnin the stock jet, 230, and have a uni filter, shoulnt be rich, ???, blue smokin a good bit too, fresh rebuild this year, and starts one kick so shouldnt be rings, and my airscrew has little effect either??? i also found last week that where the float pin goes thru the 2 aluminum carb posts, that the float had worn grooves and was hangin up, filed them down and it ran good, but adjusted float back to specs
and back to boggin again, im baffled too
one more thought for you, nuthin built a nest in your silencer did it??? mice will do that