Polaris Sportman 400 Owner's Manual

Pages 133

Year 2009

Language(s)

of 133

Polaris Sportman 400 Specification

The Polaris Sportsman 400 is an all-terrain vehicle (ATV) engineered for both recreational and utility purposes. It features a robust 455cc, liquid-cooled, single-cylinder engine designed to deliver powerful performance and reliable acceleration across various terrains. The Sportsman 400 employs an automatic transmission system equipped with Polaris' proprietary Continuously Variable Transmission (CVT) technology, facilitating seamless gear shifts and optimal power distribution. The ATV's on-demand true all-wheel-drive system ensures superior traction and control by automatically engaging all four wheels when additional grip is needed and reverting to two-wheel drive when it is not.

The suspension system of the Sportsman 400 includes MacPherson struts in the front, offering 8.2 inches of travel, and an independent rear suspension with dual A-arms, providing 9.5 inches of travel. This combination ensures a smooth ride by effectively absorbing shocks from uneven surfaces. The vehicle's ground clearance stands at 11.25 inches, making it adept at navigating rough and rocky terrains without compromising stability. The Sportsman 400 is equipped with hydraulic disc brakes on all four wheels, delivering reliable stopping power and enhanced safety.

The ATV's utility is further amplified by a front and rear cargo rack with a combined load capacity of 270 pounds, making it suitable for hauling gear and supplies. It also features a towing capacity of 1,225 pounds, supported by a standard 2-inch receiver hitch. Ergonomically designed seating and handlebar placement ensure rider comfort during extended use. The digital instrumentation panel provides essential information such as speed, fuel level, and maintenance indicators, allowing for informed and efficient operation.

The Polaris Sportsman 400 stands out as a versatile and durable ATV, balancing performance, utility, and comfort, making it an ideal choice for both enthusiasts and professionals seeking a reliable off-road companion.

Polaris Sportman 400 F.A.Q.

How do I perform an oil change on my Polaris Sportsman 400?

To perform an oil change on a Polaris Sportsman 400, first warm up the engine to allow the oil to drain more easily. Place an oil pan under the drain plug, remove the plug, and let the oil drain completely. Replace the drain plug, remove the oil filter using an oil filter wrench, and install a new filter. Finally, refill the engine with the recommended oil type and quantity as specified in the owner’s manual.

What should I do if my Polaris Sportsman 400 won't start?

If your Polaris Sportsman 400 won't start, check the battery connections for corrosion and tightness. Ensure the battery is charged. Inspect the fuel system for any obstructions or stale fuel. Check the spark plug for wear or damage and replace if necessary. If the issue persists, consult a professional mechanic.

How can I troubleshoot overheating issues on my Polaris Sportsman 400?

To troubleshoot overheating, ensure the radiator is clean and free of debris. Check the coolant level and top up if necessary. Inspect the radiator fan for proper operation. Make sure there are no coolant leaks in hoses or seals. If overheating continues, have a professional evaluate the cooling system.

What is the recommended tire pressure for a Polaris Sportsman 400?

The recommended tire pressure for a Polaris Sportsman 400 is typically around 5 psi for the front tires and 5 psi for the rear tires. However, it’s always best to consult your owner’s manual for the exact specifications for your model year.

How do I maintain the brakes on my Polaris Sportsman 400?

Regular brake maintenance includes checking the brake pads for wear and replacing them if they are below the minimum thickness. Inspect the brake fluid level and top up if necessary. Ensure the brake lines are not damaged or leaking. Bleed the brakes if you notice any sponginess in the brake lever.

What are common electrical issues with the Polaris Sportsman 400 and how can I fix them?

Common electrical issues include a dead battery, corroded connections, or blown fuses. Fix these by cleaning or replacing corroded terminals, ensuring secure connections, and replacing any blown fuses. If electrical problems persist, it may be necessary to inspect the wiring harness for damage.

How do I adjust the chain tension on my Polaris Sportsman 400?

To adjust the chain tension, first loosen the rear axle nuts. Turn the chain adjuster bolts evenly on both sides to achieve the correct tension, ensuring there is about 1/2 inch of slack in the chain. Tighten the axle nuts back to the specified torque. Re-check the tension after tightening.

What regular maintenance tasks should I perform on my Polaris Sportsman 400?

Regular maintenance tasks include changing the engine oil and filter, checking and maintaining tire pressure, inspecting brakes, cleaning or replacing the air filter, checking and tightening bolts, and lubricating all moving parts. Regularly inspect the battery and electrical connections as well.

How can I improve the fuel efficiency of my Polaris Sportsman 400?

To improve fuel efficiency, ensure the air filter is clean and replace it if necessary. Maintain proper tire pressure, and avoid carrying unnecessary weight. Use the recommended grade of fuel, and keep the engine well-tuned with regular maintenance. Avoid excessive idling and aggressive acceleration.

What should I do if my Polaris Sportsman 400 exhibits unusual vibrations?

Unusual vibrations may be caused by unbalanced tires, loose components, or worn bearings. Check the tires for balance and proper inflation. Inspect all nuts and bolts for tightness. Examine wheel bearings and suspension components for wear and replace any faulty parts.