Polaris Sportsman 450 Owner's Manual page 107

MAINTENANCE AND LUBRICATION
Cleaning and Storage
Storage Tips
Fog the Engine
1. Remove the spark plug and add 2-3 tablespoons of Premium 4
Synthetic 0W40 engine oil. To access the plug hole, use a section of
clear 1/4" hose and a small plastic squeeze bottle filled with the
pre-measured amount of oil.
NOTE: Do this carefully! If you miss the plug hole, oil will drain from
the spark plug cavity into the hole at the front of the cylinder
head, and appear to be an oil leak.
2. Reinstall the spark plug. Torque to 18 ft. lbs. (24 Nm).
3. Apply dielectric grease to the inside of the spark plug cap and install
the cap onto the plug.
4. Turn the engine over several times. Oil will be forced in and around
the piston rings and ring lands, coating the cylinder with a protective
film of fresh oil.
Alternative to Using Fogging Oil
If you choose not to use Polaris Fogging Oil, perform the following
procedure.
1. Treat the fuel system with Polaris Carbon Clean, following the
instructions on the can. Run the engine for several minutes so the
Carbon Clean reaches the carburetor. Turn the engine off.
2. Support the front end of the machine so the engine is level or tilted
slightly rearward.
3. Remove the spark plug. Rotate the piston to BDC and pour
approximately two ounces of recommended oil into the cylinder.
4. Reinstall the spark plug and torque to 18 ft. lbs. (24 Nm).
5. Apply dielectric grease to the inside of the spark plug cap and install
the cap onto the plug.
6. Turn the engine over several times to ensure coverage of piston
rings, cylinder walls and crankshaft bearings.
7. If Polaris fuel system additive is not used, fuel tank, fuel lines, and
carburetor should be completely drained of gasoline. To eliminate
any fuel remaining in the carburetor, run the engine until it stops.
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