I was looking for a backpack blower to blow the leaves off my dirt drive before I get a truckload of item 4. I don't bother with my lawn so this would be a once every year or two use. Many on CL were beat up Echos used by landscapers or a high priced Husky or Stilh (close to new price.) I came across a 30 cc Homelite for $25. Had not been started in 5 years and owner said the gas was almost jelly. It was not seized.
So I did not dicker, took it home, dumped the little amount of gas out. What came out looked like 2 cycle oil in visc and color. Maybe 1/4 cup came out. Poured in some drug store alcohol, shook it let it set an hour, dumped it out and poured in some Stihl 50:1 gas & oil from a can. The stuff is 92 octane and pure gas & oil. Pours like gold (or maybe that was my imagination at the $9.00/QT).
Anyway, with a few pulls it started right up and ran fine. I will change the plug and I think I am good to go. So the gas (1 QT) costs almost half what the blower cost.
I would have gone $35 for a 50 cc.