I don't clean carbs, not worth my time for the cost of a new one, the genuine Honda carb for the GX160 in my Toe Hoe cost a whopping $26 and took all of 2 minutes to swap it out
I have a Tecumseh 11hp in my generator, always takes 3 pulls but never more, whether it has set for a day, or 5 years, don't run it any more than I need it, I usually have stabilized gas in it, but not always, doesn't seen to make a difference