Polaris 900 RMK, Switchback Owner's Manual

For the first 20 hours, avoid prolonged operation at wide open throttle. Use varying speeds and throttle positions. Check coolant and oil levels frequently.
Check the battery charge and connections. Ensure the fuel is fresh and the fuel lines are clear. Inspect the spark plugs for wear or fouling.
Perform an oil change every 1000 miles or annually. Check the spark plugs, drive belt, and suspension components regularly. Clean the air filter as needed.
Use Polaris VES Full Synthetic 2-Cycle Oil for optimal performance and protection.
Elevate the snowmobile and use a track tension gauge. The correct tension is when the track hangs 3/8 inch at the midpoint with 10 lbs of pressure applied.
Shut off the engine immediately. Check the coolant level and inspect for leaks. Ensure the radiator is not blocked by debris. Allow the engine to cool before further inspection.
Remove the clutch cover and use the clutch spreader tool to open the secondary clutch. Replace the belt, ensuring it is properly aligned and tensioned.
Adjust the spring preload for rider weight and conditions. Fine-tune the compression and rebound settings on shocks to optimize handling.
Stabilize the fuel with a fuel stabilizer, change the oil, clean the snowmobile thoroughly, and store it in a dry, covered location. Elevate the chassis to prevent track and suspension damage.
Inspect the track and suspension for damage, check fluid levels, ensure all controls operate smoothly, and verify that lighting and signals are functional.