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IMPORTANT

The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle. Always follow the warnings and instructions in Owner's Manual.

Click the link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com.

Fogging the Engine

NOTICE
Before fogging the engine for summer storage, first treat the fuel system followed by an engine oil change. For more information, see Treating the Fuel System and Oil and Oil Filter Change.

Fogging the engine with Polaris fogging oil or similar commercial alternative is probably the most important storage step a rider can do to ensure the internal parts of their snowmobile’s engine do not rust and corrode during the storage season.

To fog the engine, do the following:

  1. Remove the spark plugs from the engine.

  2. Liberally spray fogging oil into each spark plug hole.

  3. Loosely install the spark plugs.

    NOTICE
    Do not install new spark plugs after fogging the cylinders. Fogging oil prevents the formation of rust / corrosion by sticking to the internal engine components – including the spark plug electrodes. Replace these spark plugs the following season after all of the fogging oil has been burned out of the engine.
Parent topic: Summer/Long-Term Storage Guide