Who knows about 5.5 hp governor Honda power??

It's not JUST oxygenated fuels that gum-up your small carbs.
Firstly, the quantity of ethanol in the fuel is usually just 10% or less.
Secondly, it is the first of many fuels than constitute modern gasohol, to evaporate. Which leaves the heavier molecules, which eventually dry up to become varnish, upon which grows the green chit. This stuff is insoluble in just about every cleaner you might have in your garage. Fresh gas will never dissolve it. Eventually it may let go of what it is sitting on, like in a metal fuel tank. And when it does, it may come off in small sheets and slivers, which soon plug up your fuel filter. But in the small carb, you pretty much gotta scrub it off after it has soaked in the recommended and very expensive solvent. And EVERY orifice has to be probed and restored to it's proper size. and some of the orifices are so small that if you didn't know where to look for them, you would, not just could, miss them.
All of this nonsense can be avoided by running a fuel-stabilizer in your tanks at all times, and either draining the systems, or running the tanks dry, at the end of the seasons. Stabilizer is cheap versus the minimum one hour that you will get charged to restore your piece of equipment, in a shop.
Like @tinman2 says, some of those holes are very very very small, and trying to find a probe can be a challenge.