Best to check with who/how you plan to ship.
Best get all odor of gasoline out. Completely ! I they sniff gas, you'll most likely be taking it back home.
Drain the lines, tank and carb. Then store in a room temperature until all the smell is gone.
![Thats sick :sick:](https://www.iceshanty.com/ice_fishing/Smileys/default/sick.gif)
And, it may never go away. Bummer !
Good luck. Let us know how it goes/went.