Two Cushman Engines

These two Cushman engines are sitting on the work bench in my shop. The one on the left with the air shroud is a good engine. The other one is "for parts."
These old cast iron, flat head engines are primative by 21st Century standards, but they were reliable and easy to work on. 50 or 60 years ago, teenagers overhauled their Cushman engines in a weekend.