12. COOLING SYSTEM ATV 300/250 Bolts RADIATOR DISASSEMBLY Remove the three bolts and then remove the fan/shroud from the radiator. Check fan motor by battery. CHECK THERMOSTATIC SWITCH When coolant temperature lower then 85~90 the thermostatic switch OFF. When coolant temperature over 85~90 the thermostatic switch ON. RADIATOR ASSEMBLY Thermostatic Switch Install the fan shroud on the radiator with the three bolts. RADIATOR INSTALLATION Reverse the "RADIATOR REMOVAL" procedures. Fill the radiator with coolant. (page 3-20) Connect the vent tube to the radiator filler. After installation, check for coolant leaks. If you want to refill the coolant , the following procedure must be checked. 1. Please make the radiator filler and the air vent tube to be separated. 2. Then start the engine , filled in the coolant till the coolant flowed out from the air vent tube. 3. Put the air vent tube on. 12-5