This has been posted many times, but if mine had to sit outside it would be in a cycle shell.http://www.cycleshell.com/index.html
I had a motorcycle sit disassembled in a parking lot for a winter.For about 2 months I had all the fenders off, gas tank off, carb/intake off, all lights off, handlebars off, pipes off. I just kept a cover on it and it was fine.The picture is right after I reinstalled the fenders, handlebars( you can see the control cables still dangling), and pegs. Man its crazy to think back on it. Couldn't live without a garage now.I would plug up the gas lines, I think I bought a set of rubber vacuum hose plugs at autozone for cheap. IMO you can just leave the intake on. Buy some rat poisen, although they're probably not a big problem in apartment parking lots.