I bought a ‘95 40 hp Mariner Magnum that was running fine. Put it on my boat with new cables and control box. Controller shifts the cables fine when they are unattached to motor. I ran into issues once I attached them to the motor. It became very difficult to shift with the motor not running. I messed around with moving the shifter on the motor from F-N-R and the prop and then trying to adjust the cables. Now it is very difficult to put the controller into F and I can’t even get the motor to go into reverse. The problem seems to be the motor and not the controller. Any help would be appreciated. Thanks

