This patented and unique engine features transparent engine construction, which exposes all the moving parts of a 4-cycle engine. The Oil Less Four Cycle Multi Fuel Engine Performance program has made the study of 4-cycle engines a simple task and opened the door for the student to conduct multiple experiments in alternate fuels. Since the is oil-less too, it enables the students to observe clearly the crankcase components and internal combustion of the engine. Includes variable timing and compression.