1978 Ski-Doo Shop Manual, Page 196Get this manual
SECTION 04 SUB-SECTION 02, (ENGINES)
REFILLING THE SYSTEM
Capacity: 6.2 liters (220 Impounces) (210 U.Sounces) 60 concentrated antifreeze
COOLING SYSTEM
INSPECTION
Check general condition of hoses and clamps tightness
DRAINING THE SYSTEM
To drain the cooling system, remove the coolant tank capRemove the R.Haccess grill, and connect length of plastic hose to the radiator drain valve in order to drain the cooling system outside of the bodyOpen the drain valve