well if i go to gas(wich is likely) ill use this engine to start with, then get a new one and put the electric ignition etc. on it. its a homelite 40cc(wich is supposed to weigh aprox. the same as a 30cc with alot more power. ) there realy not HORRIBLE in price, when you consider the size of the engine your getting, even the ones you buy that were built for airplanes