Two stroke engine having exhaust timing control valve means

A two-stroke engine comprising cylinder means, piston means which is received in said cylinder means for reciprocating movement, said cylinder means having exhaust port means adapted to be closed by said piston means, exhaust port timing control rotary valve means provided in said exhaust port means at upper portion thereof, said valve means being movable between a projected position wherein it is projected into the exhaust port means to thereby cover the upper portion of the exhaust port means and a retracted position wherein it is retracted from the exhaust port means, valve actuating means for actuating the valve means between said projected and retracted positions in accordance with engine speed, engine starting means for cranking said engine for starting the same, said valve means being connected with said engine starting means so that the valve means is actuated during engine starting operation to thereby eliminate valve seizure.