1982 Ski-Doo Shop Manual, Page 130Get this manual
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SECTION 02 ENGINE SUB-SECTION 07 (640 ENGINE TYPE)
43 Nm (32 ft-Ibs)
7 Carriage bolt (4) 2 Threaded spacer (4) 3_ Rubber insulator (4) 4_ Engine support (2) 5 Washer (4) 6 Nu