Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
Crazy I just have a line that runs between the dock and the mooring pole that's in the water (sorry this crazy Dutchman does not know his English nautical terms too well). I just back up slowly to the pole, shut off the motor and just pull my self in to my slip. It ain't rocket science.
The tilt locks on the Tohatsu-builts outboards (I think your Mercury is a Tohatsu) is easy to adjust, but also goes out of adjustment somewhat easily.
The lock is a semi-circular metal band on the back of the shaft, with the shift linkage rod running through it. The lock has catches that make it hold the motor in place when the lock is pushed in one direction.
There is a small plastic block on the shift linkage that can be adjusted with a phillips screwdriver. That block is what controls when the lock is engaged.
It should engage only in reverse, not in forward or neutral.
When I approach the pilings, as slowly as possible I throw a line over the first piling. This keeps me tight to the piling and the wind cannot move the boat. The line runs from a mid boat cleat to the cockpit cleat. If it is windy I am secure to the slip and can work out getting the lines from the pilings. Then I take the line on the far piling, using a boat hook, and secure it to the bow cleat. I slowly move forward with the motor until the stern is about mid slip. I reverse the motor and use the far piling as a pivot to back into the slip. I then use a clip on line to hook on to the line that runs from the piling to the dock. You can do this on both sides of the boat to keep you in the middle of the slip. I also have marked the lines with permanent marker so I can tie up quickly without worrying if I have the right amount of line out at the slip. Each slip has its own issues but I have used this technique for years whenever I solo the boat.
As has been said, it all depends on your slip, we have two fingers and dock bow first. Most of us grab a line laying on the finger while still in our cockpits. There is pretty much no way to screw it up unless you get off your boat and don't tie it up. Yes that is the second photo where I am recovering my boat after being distracted by two women in very little swim suits asking me for help as I docked. Five minutes later I turned around and voila boat running away.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.