Topic: 1958 Johnson Super Seahorse 35 Wiring Harness

This topic has 8 replies, 6 voices, and was last updated 7 years, 2 months ago by frankr.

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February 22, 2017 at 7:28 pm #6398
fisherman6
Participant
US Member - 2 Years
I recently purchased a fairly decent looking 1958 Johnson Super Seahorse. I got the wiring harness that is supposed to go with it but the harness doesn’t plug in because the motor side has two extra pins in the corners that the harness does not have receptacles for. Obviously this particular harness was never used with this motor. I dont know if I am going to be able to modify and use it or if I need to keep looking and find a harness that actually fits properly. I can get pictures of the harness and motor sides tonight, but I’m wondering if anyone can shed some light on this for me. Thanks in advance to everyone. In the mean time here is the motor side from a pic I had on my phone.
-Ben

OldJohnnyRude on YouTube
February 22, 2017 at 8:06 pm #53436
garry-in-michigan
Participant
Lifetime Member
You have a 1957 wiring harness for your 1958 motor. The `57 had no ignition switch and you stopped the motor by pushing the choke button. . . 🙂
1957

1958

Rewiring it to make it work is complicated if you have a generator installed.
February 22, 2017 at 8:21 pm #53437
fisherman6
Participant
US Member - 2 Years
Thank you Garry. I figured it was off by a year or something. I suppose I could still use it and just have to push the key switch in to stop the engine. I’d just have to relieve the space in the harness plug for the kill switch pins and choke to stop like the older motor. The 1960 Lark that is on my boat now someone removed the motor side of the connection and wired directly to the motor, which I don’t like.

Neither my ’60 Lark nor my ’58 Super Seahorse have the generator installed.
-Ben

OldJohnnyRude on YouTube
February 22, 2017 at 8:44 pm #53438
wbeaton
Participant
Canada Member - 2 Years
I prefer to use the 1958 and newer harnesses. That way I can have a generator and a kill switch. I still prefer to use push buttons over a key.

Wayne
Upper Canada Chapter

uccaomci.com
February 24, 2017 at 9:05 pm #53523
amuller
Participant
Maybe I’m hijacking this a little, but I have a ’64 40 hp I’d like to use this spring. It has no connector but rather a (ragged) harness with ring terminals for a junction box (I presume). Can anyone suggest options here? What types/years of junction boxes can be made to work with this motor? I am fairly ept at electrical stuff and could make one up, but experience says this would eat up a bunch of time. So I’d like to find the electrical box, boat-side harness, and shift/throttle setup. What years/models would work or be reasonably adaptable?

Thanks for any guidance.
February 24, 2017 at 11:55 pm #53532
frankr
Participant
US Member
Manual shift or electric shift?

http://www.marineengine.com/parts/johns … x+Assembly

http://www.marineengine.com/parts/johns … nction+Box
February 25, 2017 at 1:52 am #53535
garry-in-michigan
Participant
Lifetime Member
Here is the 1964 Wiring diagram. . . 😉
February 25, 2017 at 2:49 am #53538
outbdnut2
Participant
US Member
If you build a solenoid junction box yourself, beware that the solenoid looks like a Ford part from the 1960s but internally, the terminals are wired different – you can use the Ford solenoid, but you have to know the differences and wire accordingly or you will fry a wire in the motor.
Dave
February 25, 2017 at 7:29 am #53541
frankr
Participant
US Member
Specifically, the safety switch & wire. Also, even if you do successfully adapt the Ford solenoid, you will lose the function of the safety switch.
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