I bought a 14 ft sea king last year. Don't know the year it was made. My stern is different than yours. I have one brace at the stern and across the transom is straight. I see yours has 3 braces and a dip in the stern. I'm always amazed at how different all these sea kings look. If you could and...
I have a Humminbird piranhamax 150 portable. It works only at trolling speeds like 1/4 throttle or less mostly, works at 1/2 throttle sometimes, doesn't work at high speed. Sometimes it doesn't do well at any speed. Go to fast and the read out will show hundreds of feet when your in say 10 feet...