This teacher's guide contains 14 units on snowmobile repair: (1) introduction to snowmobile repair; (2) skis, front suspension, and steering; (3) drive clutch; (4) drive belts; (5) driven clutch; (6) chain drives; (7) jackshafts and axles; (8) rear suspension; (9) tracks; (10) shock absorbers; (11) brakes; (12) engines; (13) ignition and electrical systems; and (14) storage. Each unit includes all or some of the following: performance objectives, suggested activities for teachers and students, information sheets, assignment sheets, job sheets, transparency masters, tests, and answers to the tests. Units are planned for more than one lesson or class period of instruction. An instructional task analysis provides listings of cognitive and psychomotor tasks for each of the 14 units. A listing is provided of the needed hand tools, shop tools, safety and first aid equipment, miscellaneous tools and supplies, test equipment, and special tools and supplies. A 24-item reference list is included. (CML)