Ok, if it's the same as the Lario, and I would expect it to be..
Looking from the front: Axle (well greased) slides in from the right, through both wheel bearings..then thin washer, speedo drive, thick washer, then the left fork leg.
Welcome to WG, btw.

Nice scooter.
Edit:
Oh, while you're at it, clean and lube the speedo drive or you'll be buying a new one some day. If it's notchy, take it apart and fix it while you still can.