I have a 97 javelin 389 that has some water in the transom. I found this after removing screws from a transducer that had been mounted by the previous owner of the boat. I drilled with a very small bit a series of about 6 holes across the bottom of the transom and about 10 or so drops total came of out of the holes. The water wasn't brown.....it was clear
I checked the upper portion of the transom(from the bottom of the jackplate to the top of the transom) and it is dry and fine.
I have been doing reading about folks drilling the transom and injecting westmarine system epoxy after the wet areas are dried out.
Does anyone here have any experience doing this little project? Thanks, Cliff