My 2 stroke craftsman leaf blower won't keep running

All crafsman carbs are adjusted to meet EPA standards-- problem is they work well new buntil the next season then they ****. they have a HI-LOW adjustment on the carb at the top. but they are set into a wall surronding them. speacial tool needed to adjust. so they want you to bring it in . so they can nail you for a hundred bucks. my solution was after looking at this was to takea 1/4 in socket as it's called a deep dwell--- use a four MM --- grind down the outer wall of the socket untill it fits down on to the adjust. screw. turn each screw 1/4 turn counter-clockwise. but no more at this point. use good gas and the right amount of mix. mine is 40/1. check the fuel filter clean it --blow though it see if it's pushing air. clean air filter and use a new plug each year. mine is gapped at .35. maybe even shoot a little carb cleaner in the carb to flush it out. and if that don't work. pray your warranty is still good.