Re: Alternate Gas Tank, Under Seat?
What worked for me is, seperate vent hose from top of tank with a inline fuel filter. Place the filter close too the tank 3" or so. The filter impeads the slosh and gives it time to drain back into tank. I have about 10" of line after the filter. Remember the vent line must installed as to gravity drain back into tank. The fuel line can be installed in serpentine fashion to conserve space.