Polaris 850 Pro RMK 155, 850 Pro RMK Owner's Manual
![Polaris 850 Pro RMK 155, 850 Pro RMK manual cover](/images/2a9b580708316f0c8c3684a7/thumbs/thumb175x175.webp)
To perform a pre-ride inspection, check the fuel and oil levels, inspect the drive belt, ensure that the throttle and brake levers are functioning properly, and verify that the track is in good condition. Additionally, check all nuts and bolts for tightness and inspect the suspension for any signs of wear or damage.
The recommended maintenance schedule includes regular checks every 50 hours or annually, whichever comes first. This includes changing the engine oil, inspecting and adjusting the drive belt, checking the spark plugs, and lubricating all moving parts. Refer to the owner's manual for detailed maintenance intervals.
If your snowmobile won't start, check the battery charge and connections, ensure the fuel valve is open, and verify the kill switch is in the 'Run' position. Inspect the spark plugs for wear or fouling, and ensure that the fuel is fresh and clean.
If the track is slipping, check the track tension and adjust it according to the specifications in the owner's manual. Inspect the drive belt for wear and replace it if necessary. Ensure the drive sprockets are not damaged or worn.
To store your snowmobile, clean it thoroughly and perform all necessary maintenance tasks. Stabilize the fuel, lubricate all moving parts, and remove the battery to store it in a cool, dry place. Cover the snowmobile to protect it from dust and debris.
Common suspension issues include worn-out shocks, misaligned skis, and damaged suspension arms. Regular inspection and maintenance can prevent these problems. Adjust the suspension settings according to riding conditions and weight.
To improve fuel efficiency, ensure that the engine is properly tuned and the air filter is clean. Use high-quality fuel, maintain correct track tension, and avoid excessive idling. Smooth and consistent riding can also enhance fuel economy.
If the snowmobile is overheating, check the coolant level and ensure there are no leaks. Inspect the radiator and cooling fins for debris or blockages. Verify that the thermostat is functioning correctly and that the water pump is operational.
To replace the drive belt, first remove the belt guard. Loosen the secondary clutch to relieve tension, then remove the old belt. Install the new belt over the primary and secondary clutches, ensuring it is aligned correctly. Re-tighten the clutch and replace the belt guard.
When riding in deep snow, maintain a steady speed and avoid sudden stops. Shift your weight to keep the snowmobile balanced and prevent it from getting stuck. Use the throttle judiciously to maintain momentum and steer with the skis rather than the handlebars.