2005-2007 Polaris Ranger 500 service manual, Page 74Get this manual
ENGINE COOLING SYSTEM
Cooling System Specifications (Non-EFI)
Thermistor 262.1 ftlbs(35Nm)
Cooling System Layout and Testing WARNING
Never remove radiator cap when engine is warm or hotThe cooling system is under pressure and serious burns may resultAllow the engine and cooling system to cool before servicing
Radiator
THERMISTOR READING DURING OPERATION Condition Hot Light On Fan On (TempFan Off (Temp -) Room Temperature Thermostat System Capacity Radiator Cap Relief Pressure ApproxReading (Ohms) 185 245 307 2000 Temperature 215 (102 C) 195 (91 C) 180 (82 C) 77 (25 C)