Which of the following is the best practice for storing a motorcycle that will not be used for more than three months?

1. Drain the carburetor float bowl, add fuel stabilizer to the tank, inflate tires to spec, and disconnect the battery to charge it periodically.
2. Keep the fuel tank empty to prevent rust and leave the battery connected so the clock stays active.
3. Leave the carburetor full of fuel, start the engine once a day for 30 seconds, and park it in direct sunlight.
4. Inflate the tires to double the normal pressure and drain all engine oil to prevent acid corrosion of the bearings.