Hi there!Definitely drain the fuel, it'll be stale so get rid of it and dispose properly. I'd also remove the spark plugs and pop a small drop of oil in each cylinder. Then, don't attempt to start on the starter motor, instead turn the engine over manually by putting the bike in a high gear and use the rear wheel to turn the engine slowly through the gearbox. The oil you dropped in will coat the inside of the cylinder as they'll likely be dry right now.And yeah, new battery Best of luckMike
bit late to winterise after 5 years,,, real riders ride through every season