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So I have a 1983 Mercury 50 HP 4 cylinder outboard, but I have just about decided that I really want an outboard with BIA transom bolt pattern and power tilt and trim that mounts between the BIA transom mounts to be fully compatible with a hydraulic jack plate I have. Next I found a guy with a...
I know the newer Mercury outboards use the standard BIA pattern, but I am not sure what the older pattern is-- and in particular the pattern needed for the separate power tilt and trim.
The older mount has four mounting holes in a line that look to be narrower than the standard BIA pattern. I...
