[Gr8Jpn]

Well I am pretty mechanically inclined.. but I have no idea what the heck I have got..

1986 Mariner 40HP EL ID NO 422195 2 Cyl.

I have a 7 pin wiring harness.
I think I have a Yamaha made outboard.. but I dunno.

I have the same problem as a lot of the threads, need help wiring my new ignition switch.

Need to replace the ignition switch.. (the guy before has forced the key in upside down so many times that I have to fiddle around and get the key in just the right way.. in the right spot otherwise no dice)

The old switch has 6 posts.. and the standard letters that are all over advice in this Forum: B, M, A, M, C, S

The new switch is Quicksilver part # 54211T, and only has 5 posts.. and different letters.
Specifically: B, E, A, D, F

I thought the Marine part store had sold me the wrong switch.. but scanning the web I see that this is the Quicksilver replacement without the push to choke option.. (I guess I could always add a toggle for the choke if I wanted)

I am at a loss as to which wire goes where.. any help? PLEASE?

[bhile]

You have the wrong switch. You need the 2 M connections to turn the motor off. I suspect that the one you have is for an I/O

[roscoe]

yep, return the switch.

[Silvertip]

You need the push-to-choke style switch. Without it you have no way of choking a cold engine.

[Gr8Jpn]

Hey thanks for your help!

Per the Mercury Express parts website the 5 lug was the correct switch.. The original was discontinued... and with a simple Ohms test I figured out what the lugs were for and how I could have made it work..

But I just did not want to then hard wire a choke and all that jazz..

So I found a 6 lug - push to choke generic model at a local Boaters World for $16.99 (The Mercury 5 lug was $34.95)

So I saved time and MONEY by getting a correct switch.

Thanks for the help!