1981 Ski-Doo Shop Manual Supplement, Page 139Get this manual
SECTION 07 SUB-SECTION 02 (SKI SYSTEM)
SKI INSTALLATION
Position the skis with friction cup on each side of
NOTE: You must pullan the ski at an angle of 90 with the ski surface(Front of vehicle "Off" the ground
Friction cups
5-7 kg (12-15Ibs)