1989 Ski-Doo Repair Manual, Page 457Get this manual
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Section 05
503 0804 00 15.3 241.3 mm (9.50") 35.0 Nmm (200 Ibflin)
9.19 mrn (.362"141.4 mrn (5.57") Green-green
9.19 mm (.362") 116.4 mm (4 .58") Blue-blue