Thanks for your help everyone. It turns out that my local auto parts stores weren't very helpful either. They told me to find out what car and model year has a set of wires that matches my boat motor and they would sell them to me. They didn't want to put any effort into it.
In the end, I...
I have a 2006 90hp Mercury EFI four stroke outboard. Serial number 1B272689.
A mouse chewed the spark plug wires and they need to be replaced. From the Mercury parts catalog, they are part number 804272A1. It seems that Mercury doesn't sell them any more and the Mercury dealers tell me they...
