welp i got the right boot now but.. tried your combination among everyother combination.still cant get it to seal right there between the boot and carb. i know cause im spraying carb cleaner right there and it powers down the saw. retested pressure and vacuum on the seals just in case and theyre all good. just cant get the carb adjusted quite right with that leak. takes two and half turn on the low end. it just doesnt fit right for some reason.