Newbe, sorry for the delayed reply, I just got back from vacation(I actually get to go on one). I have surveyed the responses, I personally have not run into this issue because they are only run with approx. 8gals. of fuel. I will make sure this matter receives prompt attention, by notifying Matt Brown(Moomba Design Engineer). I will let all know of any info. that is passed on. Stay tuned.Brian Raymond