If your boat steering wheel is feeling sloppy, there are a few things you can do to fix it. First, check the steering cable to make sure it is tight and not worn out. Next, check the rudder itself to make sure it is free of debris and moving freely. Finally, adjust the tension on the steering wheel itself to see if that helps. If all else fails, you may need to replace your boat steering wheel or have a professional take a look at it.