My sportsman 850 started overheating yesterday, is there a common problem with these? The temp. light comes on and rpm's are limited. I removed the thermostat and it's fully open at 180 degrees, radiator is full.
If the radiator is clean, have you verified the water pump is working? Like Gmartino said, make sure the fan is working and it's coming on at the proper temp. and check the temp sensor.
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