Hit your local mercury dealer with your serial number and they will get you the correct ignition switch. You may pay just a little more, but you will
I agree with Bill. Take this to the Mercury outboard forum for best results.
I will suggest that if the switch now requires 9 circuits,
After working on this problem on many different boats including my own, I found that there is a larger heat exchanger available that takes care of this
Send money to bank account XXXXXXXXXXX!
Pat, over the years I've seen way too much misinformation regarding this.