Fox .29 control line engine. Gently used always ran on the rich side with plenty of castor oil. Crankshaft bushing is tight with good compression. Turns freely but a little gummy. It should be disassembled and soaked in antifreeze to remove castor residue. Fox is back in business so gasket and screw sets are available online. Comes with a new needle valve assembly. Lots of life left in this engine. No muffler.