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MAINTENANCE
2.18
CRANKCASE BREATHER
FILTER
INSPECTION
Predator ATV engines are equipped with a crankcase
breather filter in the air box. The filter is similar in
appearance to a small foam block, and is visible on the
left side (Location G, Ill 1).
The air breather filter should be inspected or replaced
whenever the air filter is inspected.
OIL AND FILTER SERVICE
NOTICE: Polaris PS-- 4 Engine Oil is
recommended for use in the Predator. PS--4 was
specifically designed for the Predator ’s engine
and clutching system. Other oils do not contain
the needed additives to prolong engine life and
provide proper lubrication to the Predator clutch
and transmission components.
1. Place the vehicle on a level surface.
2. Clean the area around the oil tank (1) and
crankcase (2) drain plugs with clean shop
towels.
CAUTION
Hot oil can cause serious burns to skin.
Do not allow hot oil to contact skin.
3. Run the engine for two to three minutes until
warm, then stop the engine.
4. Place a drain pan beneath the oil tank and remove
the drain plugs.
1
2
5. Allow the oil to drain completely.
6. Replace the sealing washer and reinstall the plug.
Torque to 14 ft. lbs. (19 Nm). NOTE: The sealing
surfaces on drain plugs, oil tank and crankcase
should be clean and free of burrs, nicks or
scratches.
7. Place a drain pan beneath the crankcase and
remove the drain plug.
8. Allow the oil to drain completely.
9. Replace the sealing washer and reinstall the plug.
Torque to 14 ft. lbs. (19 Nm).
10. Place shop towels beneath the oil filter.
11. Remove the three cover bolts and remove the
cover.
12. Pull out the oil filter. NOTE: A spring located
behind the filter may pop out as the filter is
removed. The spring must be reinstalled with the
new filter.
Step 12.
13. Using a clean dry cloth, clean the filter sealing
surfaces.
14. Replace the o-ring in the cover.
15. Lubricate the gasket on the new filter with a film of
fresh engine oil.
16. Reinstall the spring and install the new filter with
the open end facing outward.
17. Install the cover and torque the bolts to 72-78 in.
lbs. (8-9 Nm). NOTE: The long bolt must be
placed in the forward hole.
18. Remove the dipstick and fill the oil tank with 2.25
quarts (1.9 l) of Polaris PS--4 Engine Oil (PN
2874414).
19. Place gear selector in neutral and set parking
brake.
20. Start the engine and let it idle for one to two
minutes. Stop the engine and inspect for leaks.
21. Re-check the oil level on the dipstick and add oil
as necessary to bring the level to the upper mark
on the dipstick.
22. Dispose of used filter and oil properly
.
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