Part of a series of curriculum guides dealing with industrial education in junior high schools, this guide provides the student with information and manipulative experiences on small gasoline engines. Included are sections on shop adjustment, safety, small engines, internal combustion, engine construction, four stroke engines, two stroke engines, a comparison of two and four stroke engines, rotary engines, identifying markings on engines, cooling systems, air cleaners, fuel strainers, crankcases, lubrication, fuel selection, spark plugs, carburetor adjustment, compression, batteries, starting the engines, engine adjustments, storing lawn mowers, starter systems, ignition systems, and fuel systems. For each unit, objectives are provided as well as lists of learning activities, equipment needed, and resource materials. The types of activities include field trips, class discussions, research reports, demonstrations, problem solving, and the actual use and care of equipment. (ELG)