2004 Ski-Doo REV Series Factory Service Manual, Page 161Get this manual
Section 04 ENGINE Subsection 05 (LIQUID COOLING SYSTEM)
Rear Radiator and Rear Radiator Protector
Refer to FRAME for rear radiator removalinstallation proceduresFor cleaning and inspection refer to FRONT RADIATOR
Radiator and Radiator Protector
Insert radiator protector no7 into radiator C-rail and crimp C-rail at rear endRefer to FRAME for radiator no6 removal
Thermostat
For disassembly of thermostat no5, drain the cooling system (see above)Unscrew clamp no11 retaining hose no12 to the water outlet socketRemove: water outlet socket screws gasket thermostatTo check thermostat, put in water and heat waterThermostat should start to open when water temperature reaches the following degreeTo check thermostat, put in water and heat waterThermostat should start to open when water temperature reaches the following degreeENGINE All TEMPERATURE 42C (108F)