2003 Polaris Universal ATV Owners Manual - Page 103

Engine Cooling System MAINTENANCE AND LUBRICATION NOTE: To ensure that the coolant maintains its ability to protect the engine, we recommend that the system be completely drained every two years and a fresh mixture of antifreeze and water added. Polaris recommends the use of Polaris Premium 60/40 anti-freeze/coolant or a 50/50 mixture of high quality aluminum compatible anti-freeze/coolant and distilled water. Polaris Premium 60/40 is already premixed and ready to use. Do not dilute with water. See page 141 for the part numbers of Polaris-recommended products. NOTE: Always follow the manufacturer's mixing recommendations for the freeze protection required in your area. Oil Pump Bleeding - 2-Cycle Engines 1. Fill the oil reservoir with Polaris Premium 2-Cycle Oil. NOTE: See page 141 for the part numbers of Polaris-recommended products. 2. If the oil supply line has been disconnected from the pump, or if the oil reservoir and supply line have been completely run out of oil, loosen the bleeder screw one full turn (skip this step if conditions do not apply). Allow oil to flow from the bleed screw for five to ten seconds, then tighten the bleed screw. CAUTION Allowing the engine to run while the bleed screw is loose will result in loss of oil, which will cause serious engine damage. Always retighten the bleed screw if it's been loosened for service. 3. Start the engine and rotate the oil pump lever to its full open position. With the engine at idle, hold the lever up for thirty seconds to purge all air from the system. 101