Polaris 550 Widetrak LX v4 Owner's Manual
![Polaris 550 Widetrak LX 2016 manual cover](/images/664870656cf750bb4705a3ff/thumbs/thumb175x175.webp)
The recommended fuel type for the Polaris 550 Widetrak LX 2016 is unleaded gasoline with a minimum octane rating of 87.
It is recommended to change the engine oil every 100 hours of operation or at least once per season, whichever comes first.
To adjust the track tension, elevate the rear of the snowmobile, loosen the rear axle bolts, and adjust the tension bolts evenly on both sides until the track deflection is within the specified range. Tighten the axle bolts securely after adjustment.
Check the battery charge and connections, ensure the fuel valve is open, inspect the spark plugs for wear or fouling, and verify there is adequate fuel in the tank.
Before storage, clean the snowmobile thoroughly, add fuel stabilizer, change the oil and filter, lubricate the chassis, remove the battery and store it in a cool, dry place, and cover the snowmobile properly.
Maintain proper tire pressure, keep the track properly tensioned, perform regular engine maintenance, and avoid excessive idling to improve fuel efficiency.
Stop the snowmobile and allow it to cool down. Check for coolant leaks, ensure the cooling system is filled to the correct level, and inspect the fan and thermostat for proper operation.
Rough idling can be caused by dirty or fouled spark plugs, a clogged air filter, incorrect carburetor settings, or stale fuel. Address these areas to improve idling performance.
To clean the carburetor, remove it from the engine, disassemble it, use a carburetor cleaner to clean all parts thoroughly, and ensure all passages are clear before reassembling and reinstalling.
Inspect the drive belt for signs of wear such as fraying, cracks, or glazing. Measure the belt width and compare it to the specifications in the owner’s manual to ensure it is within the acceptable range.