1999 Ski-Doo Factory Shop Manual Volume Three, Page 135Get this manual
Subsection 06
Section 04 ENGINE (LIQUID COOLING SYSTEM)
System Capacity
Refer to TECHNICAL DATA 10
Refilling Procedure
Lift front of vehicle until the tunnel is horizontalWith engine cold, refill coolant tank up to cold level lineWait few minutes then refill to lineInstall pressure capStart engineRefill up to line while engine is idling until all air bubles have excaped from system (about to minutes)Install pressure capTo make sure coolant flows through radiators, touch them by handThey must feel warmPut back front of vehicle on the groundWhen engine has completely cooled down, recheck coolant level in coolant tank and refill up to line