From hubby:
IF you are keeping the bike in a garage: Buy Stabil at an auto parts store or cycle shop. Follow the label directions. You can tank mix it -- pour indicated amount of Stabil into the tank and then fill to the brim with fuel -- filling to the brim is the important step which allows no water vapor to collect in the tank. (This is an aviation rule for small planes -- it's written into their literature for the planes.) The stabilizer will keep the fuel for one year -- no problem.
ALSO: Go to competitionaccessories.com, buy a Battery Tender for under $40 to keep your battery charged. (Float charger)
That's what he'd do. If you do all those things, the bike will think it ran yesterday. If it's not kept inside, it will have rust all over -- the brake rotors will rust, the electric terminals will rust. If it absolutely HAD to be outside, get some kind of air tight stretch plastic cover. Indoor storage is optimal.
Hope that helps!
US Army will store his motorcycle but he must drain gas tank and crankcase. .
Can't use stabil on an empty tank.
Can't plug in a battery tender for a full year.
I know, I'm an evil meanie.... :-)