1989 Ski-Doo Repair Manual, Page 268Get this manual

1989 Ski-Doo Repair Manual, Page 268

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Section 03 TRANSMISSION Sub-section 03 (DR IVE PULLEY)
3,13, Outer half assemblygovernor cup
CAUTION: Do not tap on the governor cup
CAUTION: Drive pulley has metric threadsDo not us