1989 Ski-Doo Repair Manual, Page 323Get this manual

1989 Ski-Doo Repair Manual, Page 323

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Section 03 TRANSMISSION Sub-section 07 (CHAINCASE)
7,12 to 16,22,24, Sprockets, tensioner assemblychain
Unscrew the bolt on the upper sprocket and remove circlip on the bottom oneRemove ch