Hey guys, I am working on a H&G 6000G ipi dv fireplace that has a pretty healthy gas leak that I cannot pinpoint. It leaks only in the on position and is too strong for leak solution and my Leakator 10 goes nuts when I light the main burner. It appears to be coming from somewhere in either the flex line coming out of the gas valve that connects to the main burner or from the burner itself. Has anyone else ran across this problem before?
Thanks guys!!

PS, it is not coming from the valve or the flex line coming into the valve. I capped the exit of the valve and no leaks. It does not appear that anyone has "tinkered" with it before.