12. COOLING SYSTEM ATV 300/250 Radiator RADIATOR RADIATOR INSPECTION Remove the front fender. (page 2-5) Inspect the radiator soldered joints and seams for leaks. Blow dirt out from between core fins with compressed air. If insects, etc., are clogging the radiator, wash them off. Carefully straighten any bent fins. Air Vent Tube Overflow Tube RADIATOR REMOVAL Drain the coolant. (page 3-20) Remove the front fender. (page 2-5) Disconnect the air vent tube from the radiator filler. Remove the overflow tube clamp and disconnect the overflow tube. Disconnect the fan motor wire coupler. Fan Motor Coupler Bolts Bolts Remove the two bolts on the radiator filler hold plate. Remove the two bolts on the radiator. Lower Hose Disconnect the thermostatic switch wire leads. Loosen the hose bands and disconnect the upper hose and lower hose from the radiator. Pull the radiator upward to remove the radiator. Upper Hose Thermostatic Switch Lead 12-4