Re: lost keys help?
Let's back up here a bit. First, Northwood likely would not have a clue about the switch or key since it is part of the engine wiring harness and would carry either a part number from Mercury, Johnson/Evinrude, Yamaha, or whatever engine is on the boat. As was mentioned, check the switch for a letter or number adjacent to the key hole. Take that code to any dealer that sells your particular engine. Buy one key and on the way home stop at any hardware store and have a bunch of extras made (or just buy a few extras). If you can't find a code on the switch, take the boat to an "engine" dealer and have them use their "try-out" set. There are just a few different keys so this process would only take a couple minutes.