Polaris 50cc and 90cc
Engine Oil Check
Maintain the oil level within the safe range on
the dipstick. Do not overfill.
1. Position the vehicle on a level surface.
2. Remove the dipstick. Wipe it dry with a
clean cloth.
3. Reinstall the dipstick completely.
4. Remove the dipstick and check the oil level.
Tip: A rising oil level between checks in cool weather
driving can indicate contaminants such as gas or
moisture collecting in the crankcase. If the oil level
is over the full/safe mark, change the oil immedi-
5. Add the recommended oil as needed.
6. Reinstall the dipstick.
Engine Oil Change
1. Position the vehicle on a level surface.
2. Clean the area around the pre-filter plug.
3. Start the engine. Allow it to idle for two to three minutes.
4. Stop the engine.
CAUTION! Hot oil can cause burns to skin. Do not allow hot oil to contact skin.
5. Place a drain pan under the engine crankcase.
6. Remove the pre-filter plug. Allow the oil to
drain completely.
7. Wash the oil pre-filter screen with solvent to
remove debris. Allow the screen to air dry.
8. Clean the pre-filter plug. Install a new sealing
washer on the plug. The sealing surfaces on the plug and crankcase should be clean and
free of burrs, nicks or scratches.
9. Reassemble the pre-filter screen and spring to the pre-filter plug.
10. Reinstall the pre-filter drain plug. Torque to 11 ft. lbs. (15 Nm).
11. Remove the dipstick. Add 29 oz. (850 ml) of the recommended oil. Do not overfill. See
the specifications section beginning on page 162 for capacities.
12. Reinstall the dipstick.
13. Start the engine. Allow it to idle for one to two minutes.
14. Stop the engine and inspect for leaks.
15. Check the oil level. Add oil as needed to bring the level to the upper mark on the dip-
16. Dispose of used oil properly.
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