Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

[Stevolibido]

Hello all
Looking for help and advice to install a keyed ignition switch to a 1963 Evinrude Speeditwin 28 hp. The motor currently has what appears to be an aftermarket electric start button mounted near the stop button. I have the 1963 Evinrude Service manual, owners manual and parts manual and cannot find any information regarding a remote ignition switch. I don't know which switch is appropriate, whether I have to have a magneto switch or not (I've seen both) whether the switch should have a choke capability or not. I do know I'd like to use a 4 position switch to have an accessory position. Can anyone steer me in the right direction?
Thanks
Steve

 

[tx1961whaler]

Re: Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

Get a 6 terminal switch like this:
http://www.iboats.com/Omc-Push-To-C...74959480--**********.024001884--view_id.39662

I wire my old ones direct with no plugs or harnesses, but do use M-F spade connectors where appropriate so I can disconnect.

Ignition Wiring:
B - Battery------- To Battery + (Fused)
A - Accessory----- To Accessories
S - Start----------To Engine starter solenoid
C - Choke---------To electric choke solenoid (if equipped)
M - Magneto-------To one of the black magneto kill wires
M - Magneto-------To the other of the black magneto kill wires

 

[Stevolibido]

Re: Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

Thank you so much for the reply, may I ask a couple follow up questions?
How do I know if I have a choke solenoid? The motor has a choke pull.
Are the two magneto wires the ones currently wired to the stop button?
Do you know of an appropriate switch that has an accessory position or does having an accessory terminal on the switch you refered me to allow the accessories to be powered without starting the motor? It sounds like you basically create your own harness, is that correct?
Thanks
Steve

 

[F_R]

Re: Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

If you have a choke solenoid it is a round can-looking thing on the bottom of the carburetor.

Yes, the stop wires

I sort of assume the switch mentioned has an accessory position, but if it doesn't, it won't matter. Since that motor is magneto powered you can leave the key in the "on" position with no problem. The motor only draws electrical current when cranking.

 

[tx1961whaler]

Re: Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

Yes I basically build a harness. I'll use a 18 ga, 4 conductor cable for the Magneto (Kill wires), Start and Choke, then I usually bring up the fused power and ground from the motor on a separate 16 gauge cable. I run both cables up through a big heat shrink tube, do some crimping and soldering and more heat shrink on the ends, and I'm done. Just leave about a foot and a half of separated (from the outer covering) conductors from the 4 conductor so everything can be cut to length to fit on the motor. The magneto wires need to be the longest, since they go to the top and have to move around with the armature plate.

 

[Stevolibido]

Re: Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

Thank you too for your excellent reply. If I could trouble you with a couple more questions I believe I will have all the info I need.
If there is no Choke solenoid, do I need an ignition switch with a push choke function? and does it follow that if the remote ignition switch cannot choke the motor then the only way to do so would be to pull the choke control rod at the motor while cranking from the remote ignition switch?
The stop button is a sealed type with no access to terminals. One of the magneto wires runs directly to the stop button. The other magneto wire runs to the center post of the vacuum cut-out switch. Another wire runs from there to the stop button. What is your recommendation for tying into these two magneto wires?
Thank you again for all your help
Steve

 

[tx1961whaler]

Re: Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

Thank you too for your excellent reply. If I could trouble you with a couple more questions I believe I will have all the info I need.
If there is no Choke solenoid, do I need an ignition switch with a push choke function? --> Nope. That was just the first switch i saw in iBoats that had the two "M" terminals. It may be hard to find one without a choke terminal.

and does it follow that if the remote ignition switch cannot choke the motor then the only way to do so would be to pull the choke control rod at the motor while cranking from the remote ignition switch? --> Yes

The stop button is a sealed type with no access to terminals. One of the magneto wires runs directly to the stop button. The other magneto wire runs to the center post of the vacuum cut-out switch. Another wire runs from there to the stop button. What is your recommendation for tying into these two magneto wires? --> Probably easier to just splice them off of where they go into the stop button. All the stop switch (and ignition switch) does is connect the two magneto wires together to kill the engine.

Thank you again for all your help
No problem

 

[Stevolibido]

Re: Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

So the magneto wires have to originate from the top of the magneto? I had thought they might be accessed via the stop button and vacuum cut-out switch. What are you connecting the ground wire in your harness to? I already have ground and positive buses near the location of the ignition switch. Can I use power from the positive bus for the ignition switch?
thanks
Steve

 

[tx1961whaler]

Re: Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

If you already have power buses run from the same battery that is running the engine, then you would just need to run a wire from the bus to the B terminal of the ignition switch.
You can get ground from your bus or the engine block somewhere. I just like having one cable running up from the motor to the console and taking all of the power from the motor

It's not real important where the magneto wires get spliced in; it would be easy enough to capture the one that is on the vacuum switch and the other one at the stop switch

 

[Stevolibido]

Re: Wiring keyed ignition to 1963 Evinrude Speeditwin 28hp

After reading all the information I decided to follow your scheme and run the buses off battery wires coming from the engine. I like just one harness running fore and aft too.
Thank you again for all your help, I learned a lot!