40el72 Johnson electrical

Kylebellis

Cadet
Thread starter
Joined
Oct 7, 2013
Messages
6
Got a old Johnson on the weekend it's
In decent shape turns over greats with near perfect compression, but I have a few questions about wiring my specific year isn't in the wiring guides offered here... There no spark.... What is the small switch under the flywheel
That looks like a square button, the wire
Was totally corroded . Also would the main harness have some thing to do with it if a post inside the male plug was loose? Thanks alot
 

Kylebellis

Cadet
Thread starter
Joined
Oct 7, 2013
Messages
6
Re: 40el72 Johnson electrical

Got a old Johnson on the weekend it's
In decent shape turns over greats with near perfect compression, but I have a few questions about wiring my specific year isn't in the wiring guides offered here... There no spark.... What is the small switch under the flywheel
That looks like a square button, the wire
Was totally corroded . Also would the main harness have some thing to do with it if a post inside the male plug was loose? Thanks alot

Anyone?
 

tblshur

Senior Chief Petty Officer
Joined
Aug 24, 2011
Messages
690
Re: 40el72 Johnson electrical

good morning Kylebellis, you might look at the Sticky files at the top of this page it has wiring diagrams.
 

Kylebellis

Cadet
Thread starter
Joined
Oct 7, 2013
Messages
6
Re: 40el72 Johnson electrical

Thanks for the reply, but as i said there is no wiring
Diagram for 1972 Johnson 40 hp electric start....
 

boobie

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Nov 5, 2009
Messages
20,826
Re: 40el72 Johnson electrical

You might look for an OEM factory service manual.
 
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