Topic: 1956 Johnson 30hp. Shut off – Antique Outboard Motor Club,Inc

This topic has 12 replies, 8 voices, and was last updated 2 years, 2 months ago by Dan Deitz.

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April 13, 2022 at 6:37 am #258116
Dan Deitz
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US Member
I acquired a 1956 Johnson RD-18. It is mounted on a 1959 Sea King 12 foot boat. It has controls for center console. When I acquired the boat non of the wiring was attached. We muddled through attaching wires the best we could. I cannot find the kill wire (shut off). Right now I choke it to kill engine. Wondering where the wire should be and how the kill circuit works. Thanks in advance.
April 13, 2022 at 7:10 am #258117
crosbyman
Participant
Canada Member - 2 Years
not finding much info on the 30hp but if your 30 is anything like the 35hp RJE19 of 1957 it will have standard magneto

if so…. killing the engine is as simple as hooking up a normally open push button switch to the 2 points as per drawing

normally the 2 M posts on the start switch are joined inside the switch to STOP the ignition… maybe your “new wiring” is missing those connections (wires) which will do exactly the same as the above recommendation … both M posts are wired to the points to short out & kill the engine ignition system

I see you are a new member .. If not already done (sorry if I repeat myself) download your self a copy of the RED johnson service manual to service your oldy

go to

MEMEBERS ONLY TAB…INNER SANCTUM TAB …find LIBRARY… find GARRY SPENCERS DROP BOX…find the RED Book PDF & download… print locally in 2 binders of 200 pages 🙂

Joining AOMCI has priviledges 🙂
- This reply was modified 2 years, 9 months ago by crosbyman.
- This reply was modified 2 years, 9 months ago by crosbyman.
- This reply was modified 2 years, 9 months ago by crosbyman.
- This reply was modified 2 years, 9 months ago by crosbyman.
April 13, 2022 at 7:41 am #258126
frankr
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US MEMBER PAY BY CHECK
The 30hp was not factory wired for a stop switch. But a wire can be added per the 35hp design.
April 13, 2022 at 10:47 am #258159
Steve A W
Participant
US Member - 2 Years
Here’s an article explaining how to do it.

https://www.duckworksmagazine.com/05/columns/max/3/free.htm

Member of the MOB chapter.
I live in Northwest Indiana
April 13, 2022 at 12:12 pm #258164
olcah
Participant
US Member
The factory owner manual says to stop that motor by choking.
April 13, 2022 at 1:20 pm #258167
Biddaddydan
Participant
Canada Member
Well, I got my RJE-19 with all the wiring up to the junction box but minus the Choke/Starter/ Ammeter panel. I installed momentary push switch to the junction box to allow for remote choking and starting.

By looking at the actual wiring and the diagrams in my SELOC manual, I find no provision for grounding the magneto so I guessed it was designed to be stopped by choking it … as was the norm in the ’50s.

Regards

There are no old outboards, just machines so well built, they have outlasted their owners !
April 13, 2022 at 1:22 pm #258168
Mumbles
Participant
Choke to kill!
April 13, 2022 at 1:42 pm #258170
Mumbles
Participant
Your ’56 RD already has one wire going to one set of points and is connected to the vacuum operated cutout switch at the other end. This wire can be tapped into and the mag plate drilled for a second wire to connect to the other set of points. These two wires can then be hooked up to a kill switch or key switch to shut the motor down. I did this on my ’56 RDE and mounted the kill switch on the lower pan and it worked great.

Here’s a photo of your mag plate as it is now with the one wire and the next photo gives a reference where to drill it for a second wire.
April 13, 2022 at 5:57 pm #258185
Dan Deitz
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US Member
Thank you for responding and thank you for the new member information.
April 13, 2022 at 8:40 pm #258187
joecb
Participant
US Member
Yep’ I have a 1957 35 hp Evinrude Lark… choke to stop

Joe B
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