Polaris Youth Sportsman 90, Outlaw 90 Owner's Manual
![Polaris Youth Sportsman 90, Outlaw 90 manual cover](/images/167dc84222b06d1e85582a0c/thumbs/thumb175x175.webp)
The recommended oil type for the Polaris Youth Sportsman 90 is SAE 10W-30. Always ensure to use high-quality motor oil designed for 4-stroke engines.
To adjust the chain tension on an Outlaw 90, first loosen the rear axle carrier bolts, then adjust the tensioner bolts on either side until the chain has about 1/2 inch of play, and finally retighten the carrier bolts.
For Polaris Youth models like the Sportsman 90 and Outlaw 90, the recommended tire pressure is typically 4 psi for the front tires and 4 psi for the rear tires. Always check the owner's manual for specific models.
If your Sportsman 90 has starting issues, check the battery connections, ensure the battery is fully charged, inspect the spark plug for wear or fouling, and verify that there's adequate fuel in the tank.
The air filter on an Outlaw 90 should be inspected and cleaned every 20 hours of operation, and replaced if it shows signs of excessive dirt or damage.
To perform a brake inspection on a Polaris Youth ATV, check the brake pads for wear, ensure the brake rotors are not warped or damaged, and verify that there is no air in the brake lines by bleeding the brakes if necessary.
To winterize your Sportsman 90, clean and lubricate all components, add fuel stabilizer to the tank, remove the battery and store it in a warm place, and cover the ATV to protect it from the elements.
To improve the performance of your Outlaw 90, consider upgrading the exhaust system, using high-performance air filters, and ensuring regular maintenance checks. Additionally, properly tuning the carburetor can enhance performance.
Common signs that your Sportsman 90 needs maintenance include unusual engine noises, reduced power output, difficulty starting, and excessive smoke from the exhaust. Regular servicing can help prevent these issues.
To replace the spark plug on a Polaris Youth ATV, first remove the spark plug wire, use a spark plug wrench to remove the old plug, install the new plug by hand to avoid cross-threading, and then tighten it with the wrench. Reattach the spark plug wire securely.