You should fill the tank with a fresh batch of pre-mix to take up all the air space you can.
Drain the carb even if it means removing the float bowl and dumping it out. As long as the carb is open spray it out with carb spray and same with the bowl. After the carb spray evaporates, spray the insisde with some WD-40 and reassemble the carb. Be sure your air filter is clean and lubed as required
Take out the spark plug and clean it, then squirt some oil into the cylinder and piston and turn the engine over by hand a few times to be sure the oil spreads on the piston and cylinder. Reinstall the spark plug finger tight.
If it has a battery remove it and lean the battery cable ends and spray them with WD. put the battery some where to protect it from freezing, but not in a hot environment like next to a furnace. You'll have to check it's condition monthly and charge as necessary.
Air up the tires and clean the chrome and wipe WD on it.
Next spring drain and flush the the gas tank before filling it with a fresh batch of pre-mix.
Remove the spark plug and spray off the oil on it with carb spray and reinstall properly.
Reinstall the battery if it has one and use your usual starting ritual.
Once the blue smoke clears you'll have a good running 'ped again!!
I don't have to do any of that in winter here in California, but it's not a bad drill to follow anywhere when putting up an engine for an extended period of time. Six months or more I'd figure.