1974 Ski-Doo Shop Manual, Page 116Get this manual
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640 ENGINE TYPE
tt'Qat 0'0
252627 2829303732 33 34353637 Lock washer (4) Nut (79) Lock washer (75) Cvlinder head stud (8) Crankcasesupport stud (4) Lock washer (4) Nut (4) Spacer tu