This guide is designed to provide and/or improve instruction for occupational training in the area of snowmobile repair, and includes eight areas. Each area consists of one or more units of instruction, with each instructional unit including some or all of the following basic components: Performance objectives, suggested activities for teacher and students, information sheets, assignment sheets, job sheets, visual aids, and tests and test answers. (Units are planned for more than one lesson or class period of instruction.) The eight areas (and their respective units) are Steering Systems (Skis, Steering); Drive Belts and Clutches (Engine Clutches, Drive Belts, Drive Belt Adjustment and Alignment, Drive Clutch Assembly, Drive Clutch Bearing Replacement); Chain Drives (Chain Case Assemblies, Chain Replacement, Chain Repair); Axles (Drive Axles, Rear Axles); Suspensions (Bogie Wheels, Slide Rail Suspension; Brakes (Shoe Type Brake Servicing, Disc Type Brake Servicing, Hydraulic Type Brake Servicing); Tracks (Track, Track Replacement); and Shocks (Shock Absorbers). (WL)