Realize that running a parked bike ( in an unheated garage or storage bay ) really does little more than waste fuel. The condensation inside the case that boils off when you run the bike, just reappears once it's shut down and dewpoint is again reached during cool down. Later model engine internals and tires aren't of the same standard as old bikes, so days of needing to fog ( or fill ) the upper cyl's, overfilling the crankcase, putting the bike on stands, or planks, or dropping tire pressures aren't a necessity anymore unless it's going to sit for a considerable period of time. But, peace of mind is what it is with OCD bikers ( and I'm one myself from time to time ). Clean the bike, especially the chain, and lube the chain and cables. Retorque the common fasteners of the axles, triples, drivetrain, brakes, and controls. FILL the tank with fresh fuel to choke out more condensation of the fuel system, but there's little can be done to keep it ALL out unless you're privy to climate controlled conditions. Fuel stabilizer/cleaner isn't a must, but wont hurt one bit to run some through the system before storage, and treated fuel is less likely to allow the fuel to congeal. If you do feel the desire to run the bike occasionally, check the fuel level from time to time and top the tank off when it drops below the cap. Schedule your last oil change just before you park the bike for the winter. Acids develop in the oil as it breaks down and becomes more soiled, so swap/run in clean oil before it's parked. This is sort of mundane if it's just sitting for a few months, but the longer it sits opens up more opportunity for corrosion to eat at the internals. Never know what can happen over the winter months that might kill your riding plans the following season, so consider it more a precautionary measure. But, it's also convenient to kick off the spring with a simple tire check before a days worth of riding as soon as the weather cracks instead of the bike needing some servicing that first sunny day. Battery Tenders are cheap and easy ways to help maintain cell life, even if you yank the battery and bring it indoors - a little charge cycle once in a while keeps the "memory" up on it.