This is what I do for winterizing my 2004 1500 carb, I will drain the gas tank by either riding until empty or pull the hose and drain all the gas into a gascan then put that gas into my Ford truck, I leave about 2-3 litres of gas in the bottom of the bikes gas tank just enough to get to the gas station, I bring a can of seafoam with me and not that pink or red Stabil stuff, so at the gas station i pour in about one-third a can of the seafoam into the tank then fill up the tank right up full then ride home, at home I pull the airbox and drain the gas from the carb bowl. Top up the gas in the tank making sure all air is expelled. Then I will drain the oil, put on a new Wix filter and fill it up with Shell Rotella T 5w40 oil. The fresh oil in there will not degrade over winter and can be used for spring riding season. In spring check the tire pressure because my tires leak air over time. I don't start the bike over winter because a heated then cooled crankcase causes condensation and water in the crankcase and also will fill up the carb bowl with gas so I don't touch the ignition key over the winter.