If your bike is kept outdoors for the winter and its damp then fog it.
You will need to remove the air filter to do this. I also recommend at this time to add Stabil in the fuel with a full fuel tank (NEVER empty the tank, store full)
Once the air filter is removed, run the engine at idle and spray the fogging oil directly into the throttle bodies, one then the other till she tries to stall.
Spray enough that the engine smokes alot and shut it off. button it up and remove the battery into a warm area for storage (batteries will freeze when inactive).
Try to atleast keep the bike in a covered structure and use a BREATHABLE cover for it. Tarps and non breathable covers cause serious condensation and mold issues that you do not want.