I made this scooter over 25 years ago from plans printed in a 1934 Popular Mechanics magazine.
I used to ride it with my grandson standing on it in front of me. I took it out of the shed to show a neighbor kid and it wouldn't run after sitting a while. It has a 3hp Briggs engine. The carb and tank ere all gunked up and the check ball in the pickup tube was stuck. I took it apart and put the parts in my sonic cleaner. I had to remove the screen to free the check ball. I had a new screen from a weed whacker carb that I glued on with jB Kwik.