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DOCUMENT RESUMEED 319 917AUTHORTITLEINSTITUTIONPUB DATENOTEAVAILABLE FROMPUB TYPEEDRS PRICEDESCRIPTORSIDENTIFIERSCE 054 859Hennessy, Stephen S.; Conrad, RexSnowmobile Repair. Teacher Edition.Mid-America Vocational Curriculum Consortium,Stillwater, Okla.87380p.; For a related report, see CE 053 901.Mid-America Vocational Curriculum Consortium, 1500West Seventh Avenue, Stillwater, OK 74074 (order no.CN100412, 17.00).Guides - Classroom Use - Guides (For Teachers) (052)MFO1 Plus Postage. PC Not Available from EDRS.Competency Based Education; *Engines; First Aid; HandTools; High Schools; Measurement Equipment; *MotorVehicles; *Occupational Information; OccupationalSafety and Health; Postsecondary Education; Repair;Skilled Occupations; *Small Engine MechanicsPower Tools; *SnowmobilesABSTRACTThis teacher's guide contains 14 units on snowmobilerepair: (1) introduction to snowmobile repair; (2) skis, frontsuspension, and steering; (3) drive clutch; (4) drive belts; (5)driven clutch; (6) chain drives; (7) jackshafts and axles; (8) rearsuspension; (9) tracks; (10) shock absorbers; (11) brakes; (12)engines; (13) ignition and electrical systems; and (14) storage. Eachunit includes all or some of the following: performance objectives,suggested activities for teachers -nd students, information sheets,assignment sheets, job sheets, transparency masters, tests, andanswers to the tests. Units are planned for more than one lesson orclass period of instruction. An instructional task analysis provideslistings of cognitive and psychomotor tasks for each of the 14 units.A listing is provided of the needed hand tools, shop tools, safetyand first odd equipment, miscellaneous tools and supplies, testequipment, and special tools and supplies. A 24-item reference listis included. *************************t*Reproductions supplied by EDRS are the best that can be made*from the original ********************************

&J".7.Evers47,Reee,,,US. DEPARTMENT OF EDUCATIONOffice of Educabonel Research end Inpro- 'atmEDUCA ORAL. RESOURCES INFORMARONCENTER (EFI'qIsis document has been reproduced asreceived from the person or orrrarozaboRongulahng .1.C Minor chanpes have been made to i.mproeereproduction QualityRousts , raw or ocueons stated .n thts docu-ment do not necessanIs represent OctalOERI position or softyI.-Dt."PERMISSION TO REPRODUCE THISMATERIAL IN MICROFICHE ONLYHAS BEEN GRANTED BY'/y4,TO THE EDUCATIONAL RESOURCESINFORMATION CENTER .BEST COPY AVAILABLE

North DakotaSouth DakotaMissouriArkansas3

SNOWMOBILE REPAIRWritten byStephen S. HennessyandRex ConradEdited byDan FulkarsonDeveloped byThe Mid-America Vocational Curriculum Consortium, Inc.Board of DirectorsBob Patton, Oklahoma, ChairmanLarry Lyngstad, South Dakota, Vice ChairmanHarley Schlichting, Missouri, ParliamentarianJames Dasher, ArkansasBob Wilmoth, ColoradoJohn Van Ast, IowaDavid Poston, LouisianaAnn Masters, NebraskaRon Mehrer, North DakotaRobert Patterson, TexasGreg Pierce, Executive Directorr4CN100412

0 1987 by the Mid-America Vocational Curriculum Consortium, Inc.All rights reserved. No part of this bookmay be reproduced in any form or by anymeans without written permission from the publisher.Printed in the United States of America by theOklahoma State Department of Vocational-Technical EducationStillwater, OK 74074Mid-America Vocational Curriculum Consortium, Inc.1500 West SeventhStillwater, Oklahoma 74074-4364

SNOWMOBILE REPAIRTABLE OF CONTENTSUnit I:Introduction to Snowmobile RopairUnit II:Skis, Front Suspension, and Steering29Unit III:Drive Clutch65Unit 1V:Drive Belts9?Unit V:Driven Clutch127Unit VI:Chain Drives171Unit VII:Jackshafts and Axles201Unit VIII:Rear Suspension225Unit IX:Tracks251Unit X:Shock Absorbers287Unit XI:Brakes313Unit XII:Engines343Unit XIII:Ignition and Electrical Systems385Unit XIV:Storage4416Hi1

FOREWORDThis text set out to be a revision of MAVCC's 1976 publication, Snowmobile Repair, and quicklysnowballed (no pun intended) into a brand new book. We say brand new because of the addi-tion of many materials that did not appear in the original text. Materials covering engine service, ignition and electrical troubleshot, Zing, and storage help make this new text a much morecomprehensive effort. The expanded treatment of the unique variable clutch in snowmobilesis another welcome addition, and the entire text has significant graphic additions such asexploded views and photographs to enhance its usefulness.We naturally thank Wayne Helbling of Mandan, North Dakota, for the original text, but wepoint with pride to this new book and thank Stephen Hennessey of Alaska, and Rex Conrad ofSouth Dakota, for helping write these materials. Stephen teaches small engine repair atWasilla High School in Wasilla, Alaska, and Rex teaches motorcycle technology and snowmobile repair at Western Area Vo-Tech Institute in Rapid City, South Dakota. Needless to say, bothinstructors live in the snowbelt and know their snowmobiles.The snowmobile serves many purposes; for many it's a recreation vehicle. Others race snowmobiles while some people put them to work. But in the heavy snow areas where winter passage is denied other vehicles, the snowmobile is a life saver. In short, the snowmobile is amulti-purpose vehicle that requires special service, and that is what Snowmobile Repair isdedicated to.Bob Patton, ChairmanBoard of DirectorsMid-America VocationalCurriculum Consortium

PREFACEMAVCC's constant attention to format improvement is evident in every unit of SnowmobileRepair. The use of exploded views in transparency masters help show students important relationships that other types of line art would not accomplish. The use of photographs toenhance the step-by-step procedures is another effort to add work-place realism to the instructional process. We think the added graphic impact will make this book more interesting forstudents and enhance the teaching value of the text for instructors.We might mention too that Snowmobile Repair has some other fine texts for company inMAVCC's small engine repair series. These texts include Small En,c,.ie Repair: Two-Stroke andFour-Stoke Cycle, Chain Saw Repair Outdoor Power Equipment Repair, Outboard Repair, anda brand new Motorcycle Repair. In other words, MAVCC's big on small engines. Keep us inmind.Greg PierceExecutive DirectorMid-Ame 'ca VocationalCurriculum ConsortiumIvii

ACKNOWLEDGEMENTSIn addition to writers and editors, it takes many other people to help develop a good text book.Snowmobile Repair owes a thank you to many people, especially the committee that helpedplan and validate the text. This group includes:Mike EmbertyKenneth PowersAl GosleeJohn SheddStephen S. HennessyRandy LoweNorm McDonaldMickey BaugusLyle SweeterKevin HartleyJerry JohnsonKen LizotteFt. Collins Cycle Center, Ft. Collins, ColoradoVocational Curriculum Development and Research Center,Natchitoches, LouisianaSoutheast Community College, Lincoln, NebraskaHolmes High School, San Antonio, TexasWasilla High School, Wasilla, AlaskaIndian Capital AVTS, Sallisaw, OklahomaK & N Motorcycles, Tulsa, OklahomaCentral AVTS, Drumright, OklahomaAmerican Honda Motor Company, Inc., Gardena, CaliforniaAmerican Honda Motor Company, Inc., Irving, TexasAmerican Suzuki, Dallas, TexasKawasaki Motors Corp., U.S.A., Irvine, CaliforniaThe writers, Stephen S. Hennessy of Alaska, and Rex Conrad of South Dakota deserve specialthanks for their dedication to the project. For assistance with writing and research, thanks toRob Dean, and for photography, thanks to Dan Fulkerson.Special appreciation is extended to Kawasaki Motors Corp., U.S.A., and their National TrainingManager, Ken Lizotte. Although Kawasaki no longer markets snowmobiles, their shop manuals provided many of the illustrations that have helped enhance this text.Appreciation is also extended to Yamaha Motor Corporation, U.S.A., and their Service TrainingManager, Dennis Hendrix for sending valuable reference materials, and to those from othercompanies who contributed their time in telephone consultations and also provided excellentreference materials: Bryce Abrhamson from Arctic Cat in Thief River Falls, Minnesota; D. Royof Bombardier, Ltd., in Valcourt, Quebec, Canada; and Dick Arneson and Norm Berg of Polarisin Roseau, Minnesota.-vA special not6 of appreciation is also extended to the Department of Education, State ofAlaska, for supplemental development funding, and to the Coordinator of Career and Vocational Education, Verde!! Jackson, for his personal attention to paperwork matters that madeeverything happen.A final thank you goes to Leslie Mathis, the phototypesetter who put it all together, and to theOklahoma Vo-Tech Print Shop personnel for the fine job of printing the text.9ix

USE OF THIS PUBLICATIONInstructional UnitsSnowmobile Repair contains fourteen units. Each instructional unit includes some or all ofthe basic components of a unit of instruction; performance objectives, suggested activitiesfor teachers and students, information sheets, assignment sheets, job sheets, visual aids,tests, and answers to the tests. Units are planned for more than one lesson or class period ofinstruction.Careful study of each instructional unit by the teacher will help to determine:A.B.The amount of material that can be covered in each class periodThe skills which must be demonstrated1.2.3.4.C.D.Supplies neededEquipment neededAmount of practice neededAmount of class time needed for demonstrationsSupplementary materials such as pamphlets or filmstrips that must be orderedResource people who must be contactedObjectivesEach unit of instruction is based on performance objectives. These objectives state thegoals of the course, thus providing a sense of direction and accomplishment for the student.Performance objectives are stated in two forms: unit objectives, stating the subject matterto be covered in a unit of instruction; and specific objectives, stating the student performancenecessary to reach the unit objective.Since the objectives of the unit provide direction for the teaching-learning process, it isimportant for the teacher and students to have a common understanding of the intent of theobjectives. A r 'ted number of performance terms have been used in the objectives for thiscurriculum to assist in promoting the effectiveness of the communication among all individuals using the materials.Reading of the objectives by the student should be followed by a class discussion toanswer any questions concerning performance requirements for each instructional unit.Teachers should feel free to add objectives,which will fit the material to the needs of the students and community. When teachers add objectives, they should remember to supply theneeded information, assignment and/or job sheets, and criterion tests.