new to this have some questions please help

[Davebull]

I just bought a 1970 Scout 800 it has two had tanks but I can't figure out how to switch them can anyone help ?

 

[1975IH200]

I just bought a 1970 Scout 800 it has two had tanks but I can't figure out how to switch them can anyone help ?

On the floor, under the driver seat, outboard side.

Looks like this photo.

Fuel gauge switch is on the dash.