I have a 25 hp Mariner o/b with harness installed. I wish to connect to a Narva 64012 Marine 4 position key ignition switch. The color codes and where they attach to motor are: Red to + terminal at starter solenoid (+ battery feed) White to CD IGN box Brown to forward/reverse switch and lower + terminal on starter solenoid Blue to choke solenoid Black to earth Pink to earth (normal color code is yellow) Green to magneto ( pull start flywheel) The Narva 64012 switch has 4 positions: BATT IGN SOL ACC I tried connecting Red to BATT, White to IGN through a kill switch, Brown to SOL, Blue to ACC through a choke switch, Pink and Black to negative battery post and Green was left unconnected. When turned on at key motor started but would not cut out when key turned to off or when the kill switch was activated. Can you help with correct wiring sequence?

Hi Colin, I have looked several diagrams over and do not see the configuration your describing. can I ask what year is this motor? and is the harness factory?
Thanks Hi Colin, I have looked several diagrams over and do not see the configuration your describing. can I ask what year is this motor? and is the harness factory? Thanks

I have a pdf of a 25E but am unable to upload it. It can be found at:http://www.maxrules.com/oldmercs/Wiring/...
This shows the yellow which is my pink. All other colors and destinations are correct.
It shows the wiring for a 6 position key ignition but I have a 4 position one.
I hope this helps you further. I have a pdf of a 25E but am unable to upload it. It can be found at: http://www.maxrules.com/oldmercs/Wiring/0_1965a/12.pdf This shows the yellow which is my pink. All other colors and destinations are correct. It shows the wiring for a 6 position key ignition but I have a 4 position one. I hope this helps you further.

On the pdf it shows a remote control box which is non existant on my motor.The Blue (choke) will run through a separate switch. This switch is spring returned to off position. It would seem that I connect one end to power and the other to choke. On the pdf it shows a remote control box which is non existant on my motor.The Blue (choke) will run through a separate switch. This switch is spring returned to off position. It would seem that I connect one end to power and the other to choke.

My motor is a 25EL. Origin of harness unknown. The pdf does not show the CD IGN box. The Green wires (2) from the magneto terminate at a small box (1 1/2 in ) on the starboard side near the spark plugs with the green wire from the harness. (2 in 1 out) No other wires to or from this box.This box is not in the pdf. My motor is a 25EL. Origin of harness unknown. The pdf does not show the CD IGN box. The Green wires (2) from the magneto terminate at a small box (1 1/2 in ) on the starboard side near the spark plugs with the green wire from the harness. (2 in 1 out) No other wires to or from this box.This box is not in the pdf.

What has to be happening is that the coil pack is still energized even though the key swutch is off, all the key is doing is activating the starter allowing the motor to turn over and then fire. I am trying to make since of this diagram but the connectors are throwing me off without being there to test voltages to see where the power is coming from. With the key off, use a meter to check for voltage to the coil and trace back where it is coming from and we will find out what is energizing the coil. What has to be happening is that the coil pack is still energized even though the key swutch is off, all the key is doing is activating the starter allowing the motor to turn over and then fire. I am trying to make since of this diagram but the connectors are throwing me off without being there to test voltages to see where the power is coming from. With the key off, use a meter to check for voltage to the coil and trace back where it is coming from and we will find out what is energizing the coil.

Look at the wiring to the magneto and see if your backfeeding into the coil. Look at the wiring to the magneto and see if your backfeeding into the coil.

The engine runs when started by key ...basically what I am asking for is a kill switch wiring - to be able to kill motor when toggle is relased from kill switch and killed when key turned off.
Will wiring the White wire from CD Ignition to the kill switch and ignition terminal on in terminal of kill switch and earth wire to out terminal of kill switch do what I want? The engine runs when started by key ...basically what I am asking for is a kill switch wiring - to be able to kill motor when toggle is relased from kill switch and killed when key turned off. Will wiring the White wire from CD Ignition to the kill switch and ignition terminal on in terminal of kill switch and earth wire to out terminal of kill switch do what I want?