Here's what I did when I lived in an apartment. Dont have quite the extreme elements that you have up north but it can be pretty damp and humid down here.
Take two large tarps. Lay one down and drive the cycle up on it. pull the tarp up and around the cycle. Take the 2nd tarp and put it over and wrap tightly. Its gonna be a pain to get in and out of but its probably the best at weatherproofing your gonna get with it outside like it is. Best I can do for ya. Good luck!
