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    Transom bolt pattern for older (1983) 50HP 4 cyl Mercury with power tilt and trim

    This is the picture of the back of my jackplate-- where the motor mounts. You can see the BIA pattern holes drilled into the back plate. The problem I am going to have is that the jack plate cylinders are about 16 inches apart-- meaning that they are going to interfere with the mounting of the...
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    Transom bolt pattern for older (1983) 50HP 4 cyl Mercury with power tilt and trim

    So to start at the beginning, I have been wanting to go fishing at a place called Lee's Ferry in northern Arizona since I hiked in that area as a boy scout. It is the stretch of the Colorado River right below lake powell. You can put at Lee's Ferry and you can go up about 13 miles to the dam...
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    Transom bolt pattern for older (1983) 50HP 4 cyl Mercury with power tilt and trim

    Thank you for your efforts in the cold. The more I look into this the more I think I am going to have either not use the jack plate I have or not use the power tilt and trim. Unless I were to not use either of these motors and instead find a newer one with a BIA pattern and the power...
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    Transom bolt pattern for older (1983) 50HP 4 cyl Mercury with power tilt and trim

    None of those pictures are actually my motors. I have two 50hp in my possession. One is still laying in the back of the SUV covered in grime and the other one is in pieces in the garage. When I get them out and cleaned up I will take some pictures. I am hoping to get one functioning motor...
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    Transom bolt pattern for older (1983) 50HP 4 cyl Mercury with power tilt and trim

    I guess this distance between the hole on the trim unit bracket and the hole on the mount. But I am not really sure how it mounts. Do you have two holes in your transom for each tilt bracket? One in the whole I highlighted and one in the slot below it? To be honest, I am not even sure how...
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    Transom bolt pattern for older (1983) 50HP 4 cyl Mercury with power tilt and trim

    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...
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