How do you refuel a Piaggio scooter?

The fuel hole under the seat doesn't look big enough to take a petrol pump. Is it?

Of course it is. These things are all standard sized. Just don't shove the nozzle all the way in or as soon as the fuel splashes up it will shut off the pump. Hold the nozzle about half an inch inside the hole and pump away. You'll be fine.

No. You throw them away when they run out. Like a disposable lighter.