What can i use to replace the foam inside the hull of 98 GSXL, I removed the resonator to see exactly were it was leaking, I hope the problem came from age, right across from were the rubber hose attatches to the resonator that runs from the water box(muffler)looks like a soft spot blew up like a balloon & popped a hole in it is about 2 in. in diameter, I read some post's that say to make sure all of the water lines are clear and they are, I took both lines loose from the head pipe to the water valve on the water box & blew through them & air came from the other hose, like it went through the valve, is that right, not sure how much pressure makes the valve work, I would assume that it works kind of like the RAVES

Thanks David N