2003 Bombardier Rally 200 Service Manual, Page 94Get this manual
Section 03 ENGINE Subsection 05 (COOLING SYSTEM)
At this point, wait until engine reaches normal operating temperatureDepress the throttle lever two or three times; then add coolant if requiredInstall the radiator capInspect all connections for leaks and recheck coolant in the reservoirOnce year, check coolant concentration (freezing point) with proper tester
THERMOSTAT
The thermostat is single action type
Removal
NOTE: The thermostat is located on the top of cylinder head, on intake sideRemove: bleeding screw no2 on thermostat cover (only turn loose) thermostat housing screws no3 and pull thermostat cover no4