Let the machine cool, pop the radiator cap off and leave it off and start the machine. After it warms up you should start to see the coolant flowing if the thermostat and the water pump are going. If there is no flow, start with replacing the thermostat (that is probably more likely than the water pump). Also, check with your local dealer and see if there were any problems with that year of Grizz.

 

i did that and the coolent does move slowly after warmed up. all grizzlys are known to run hot but not over heat, that is what i heard

 

yes check the rad , the corners fill up with mud and you can't see it.