2005 Ski-Doo RT Series Shop Manual, Page 102Get this manual
Section 02 ENGINE Subsection 10 (COOLING SYSTEM)
COOLING SYSTEM LEAK TEST
WARNING
To prevent burning yourself, do not remove the coolant tank cap if the engine is hotInstall special coolant tank cap (PN 529 021 400) included in the engine leak tester kit (PN 861 749 100) on coolant tankInstall hose pincher (PN 295 000 076) on overflow hoseUsing pump also included in kit pressurize all system through coolant tank to 100 kPa (15 PSI)295 000 076 529 021 400
Remove coolant tank capLift front of the vehicle and remove bottom pan cap
A35C3BA
Place drain pan under the drain holeUnscrew drain plug