For my coweled engine I use a T type fuel filter and a fuel dot. You can simply close the throttle and you won't flood the engine while fueling. For extra security vs flooding, a hemostat applied to the fuel line between the T and the carb works well. (and they can get in some very hard to reach places)

You can also use the 3 line tank method. with a second clunk line (this allows defueling) and again, a fuel dot.

There's a bunch of other ways to go about it. [img]i/expressions/face-icon-small-wink.gif[/img]