Vintage Enya SS40 (Model 6301) 2-STROKE RC Airplane Engine with Muffler, Box & Manual.  Engine is used.  Has good compression, although it has not been recently tested.  It comes from a hobby shop that went out of business.  Carb hole was covered up while in storage.  Includes muffler, manual, and other original paperwork.  You get exactly what you see in the pictures.