1980 Ski-Doo Shop Manual, Page 321Get this manual
SECTION 07 SUB-SECTION 02 (SKI SYSTEM) 36 N"m (27 It-Ibs)
Futura 500 E, Futura LC Everest 500 E, Everest LC Grand Prix Special, Blizzard 5500 Super Sonic, Blizzard 7500 Ultra Sonic, Blizzard 9500