Re: Extra plug in F115?
that engine can be rigged with command link,the late style 6y5 digital,the eairlier 6y5 digital as long as its 2 wire trim lead and 4 stroke compatible or yamaha analog. the wires are on the powerhead even if not used.
thats why I say depending on how its rigged and what its rigged with you may have an extra plug lead,or 2. however they should have a waterproof cap. if not take it back.
the 4 wire,pink,orange,black and gray connector would be used for trim signal send and overheat visual on older rigging components but not normally used if rerigged or a new package.
your description of your rigging is meaningless

. yamaha digital and command link are all avalible in round configuration .
I am rigging my F150 with square comand link. will post on how it goes as I am going to add all avalible rigging options to it just to see how they interface,