happens a lot with me, lol. get a saw…runs like crap…clean everything and all goodI was recently presented with a hoosky 240 that crapped out when the throttle is pinned.. I started sniffing for leaks..... Wound up mostly dismantling it in the search.. Didn't find a leak,, in the primer bulb, or the carb hoses. It would idle.. So I cleaned it with aerosol carb cleaner and slowly started to assemble it.. When it was done, pulled it over and it ran like scared whore. A bit of tuning and it seems fine... I guess I suck for not being able to say " that's the problem". Same plug, same everything,, but it runs good now.. Was it just crud ??
carbs are the worst culprits on old saws that have sat around for years. Sonic tank is a must.