I finished my giant engine stand(will post pics later-came out pretty good!) trying to get these converted engines running. I haven't run them yet, Ryobi 31, Mac 25, and 18cc-maybe a Poulan, I'm not for sure. Are there spring starters for these? If so, where do we get them? Thanks, Tracy in Omaha.

Its hard to imagine needing a spring starter on any of the common weeder engines and some like the Ryobi cant be adapted since the carb and exhaust are on the back.All these engines are low C.R. and the easiest way to start them is with a regular starter with a healthy twelve volt.I have used a heavy duty Tower unit and one of those sealed batteries successfully for years on various Ryobis and Poulans......

Thanks Kevin. They do seem easy to turn.