These are two interesting Half A's and less. The one on the left is a K&B Stallion .049 with an enclosed flat spring recoil starter and the one on the right is the little .010 with the Famous Cox recoil spring and the one in front is the I believe is the most mass produced engine ever and I cannot recall the numbers but is the leader by far - the little Baby Bee .049 with the simplest mass produced recoil starter ever and they worked great, also preventing the engines from starting backwards which the reed valve Cox were famous for.

Sorry I don,t have any of the Wen Macs with their recoil spring starter.

John


Sorry guys I screwed this up the pics are down at the bottom