1989 Ski-Doo Repair Manual, Page 119Get this manual

1989 Ski-Doo Repair Manual, Page 119

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Section 02 ENGINE Sub-section 05 (503 ENGINE TYPE)
Engine Rotax type 503 Stud M70 25 (4) Engine bracket Flat washer 70.5 mm 27 (4) Lock washer 70 mm (4) Hexagonal nut M70 (4) Rubber mount (4) In