I use it in my seasonally used small engines to keep the carbs clean and to clean out gunked up carbs. I got a Honda tiller from my parents with the engine locked up. I got the engine free, but it needed the choke all the way out to run. After a tank of seafoam treated gas, it idles nice and smooth with the choke all the way in once it's warm.

If you love someone set them free
If they come back no one else liked them
Set them free again