Comparing these buggys to kart racers is sort of a apples to oranges thing. The Briggs motors use a third of the fuel consumption. they only run for a short period of time and it's mostly level smooth pavement The demands on a buggy fuel supply are considerably greater.
there is no power source for a pump to be found in the valve cover of a buggy cvt motor. if there is any pressure there at all it is sporadic ,inconsistent and only occurs if there is blow by from bad rings.
There is a vacuum source in the intake between the motor and head that could operate a vacuum pump but doubtful if the pump could keep up with demand.
The tank mounted above the rear motor has never seemed to be an issue As long as the fuel cap seats properly and the tank is vented correctly there is no problem.
I use an good quality aftermarket tank for the purpose of larger capacity and durability. I have put the buggy on the roof and never spilled a drop from the tank. The fume problem only happens during refueling and after you move for-wards the vapors are evaporated in the wind behind you.
|