Well,
It is under the seat, after all. I doubt that enough water could get in there to do anything unless there was a hurricane passing thru. On the same idea, the guys with the freak have no airbox - the filters just hang off the back of the carbs - and there haven't been any reports on here about moisture problems. Then there's boogieman's set up where the filters hang outside of the carbs....
I don't think water entry would be a problem...
