Stabil additive in the gas, I drain my carbs, less gum to flush out later, battery tender, engine fogging oil couldn't hurt either, I know some who remove the plugs and squirt Marvel Mystery Oil down the cylinders. A lot would depend on where you park it, Temp variations results in condensation. Basically the same as putting away a lawn mower you expect to run next Spring. Of course to compare a bike to a mower, they are both machines, ah, never mind.
