I have a Mercury 50 HP 2 Stroke that has had an external Kill Switch fitted to it at some time. The Control Box is a Quicksilver type.<br /><br />I thought it worked when I bought the boat, but have since found out that it has no effect whatsoever on killing the engine when the Kill Cord is pulled.<br /><br />The engine runs fine and can be stopped with the key.<br /><br />On looking at the wiring for the Kill Switch, I can see three wires.<br /><br />One Black wire is moulded directly in to the bottom of the switch.<br /><br />A Black and Yellow wire is also moulded directly in to the switch.<br /><br />A third wire, also Black and Yellow and contained in the same protective sleeve as the other two wires is not connected to anything.<br /><br />It does look as though possibly the loose Black and Yellow wire was connected in to the base of the Kill Switch and may have broken off some time ago, but I am not too sure about this as it would need to go in to the base of the plug very close to the other Black and Yellow wire.<br /><br />Could it be that the loose Black and Yellow wire goes to earth or does it goe in to that switch. I suppose it would make sense for it to go in to the switch.<br /><br />Any Help would be appreciated.
