I had the same problem when I switched out jack plates on my flats boat. Here is a little trick I learned. While the engine is hanging on a hoist take out all of the bolts completely, take a piece of 30# mono or wire leader,feed it through the small gap between the transom bracket and transom and saw the 5200 with the line or wire leader. you have to contort back and forth with a sawing motion and it will cut the 5200. I`ll bet braided line would work even better. This works!