My sportsman 500 ho over heats I replace circuit breaker so fan runs now as before it was not always runny when it should now it runs all the time when ATV gets up to temp. The fan runs all the time when warmed up with out turning off even though its 30 degrees out is this normal? When I let the ATV cool then start it up no fan till it warms up but then doesn't cycle is this normal? Do your fans run all the time? The fan pulls 5amps on my multimeter Tatar opens in boiling water water pump impeller looks fine... Over heats when my dad uses it to plow his driveway the last couple of snow storms thanks in advance. Dennis