Polaris Sportsman 400 H.O, Sportsman 500 Owner's Manual
![Polaris Sportsman 400 H.O, Sportsman 500 manual cover](/images/c01f501a1a39afb3524e9bf7/thumbs/thumb175x175.webp)
To perform an oil change on the Polaris Sportsman 400 H.O, first warm up the engine, then shut it off. Place an oil pan under the drain plug, remove the plug, and let the oil drain. Replace the drain plug, remove the oil filter, and install a new one. Refill with the recommended oil type and quantity, then check for leaks.
If your Polaris Sportsman 500 won't start, check the battery connections for corrosion or looseness, ensure the fuel valve is on, and verify that the kill switch is in the 'run' position. Inspect the spark plug for wear or damage and replace if necessary.
Regularly inspect the brake pads for wear and replace them when necessary. Check the brake fluid level and top it up with the recommended type if needed. Bleed the brakes to remove any air from the system if the brake feel is spongy.
The Polaris Sportsman 500 is recommended to use unleaded gasoline with a minimum octane rating of 87. Avoid using fuel with more than 10% ethanol to prevent damage to the engine components.
To troubleshoot overheating issues, first check the coolant level and refill if necessary. Inspect the radiator for blockages or debris and clean it if needed. Ensure the fan is functioning properly and replace the thermostat if it is faulty.
The recommended tire pressure for the Polaris Sportsman 500 is typically between 5 to 7 psi for both front and rear tires. Always check the tire pressure when the tires are cold for accurate readings.
Service intervals for the Polaris Sportsman 400 H.O vary, but generally, it's recommended to perform a full service every 50 hours of operation or every 6 months, whichever comes first. Regular maintenance includes checking fluids, filters, and key components.
To adjust the suspension on your Polaris Sportsman 500, locate the preload adjuster on the shocks. Use a spanner wrench to increase or decrease the preload as needed for your desired ride comfort or load conditions.
If the headlights are not working, check the bulb for any signs of burning out and replace if necessary. Inspect the fuse box for any blown fuses related to the lighting system. Check wiring connections for damage or corrosion.
To improve performance, ensure regular maintenance is performed, including air filter cleaning or replacement, proper tire inflation, and using high-quality fuel. Consider upgrading the exhaust system or adding performance-enhancing accessories available for the model.