1963 Johnson "bigtwins" 40hp

engine391

Cadet
Joined
Mar 10, 2010
Messages
13
Hello all!! I have been looking through all the posts for the above motor, and need some help. I bought this motor recently, and need a wiring diagram starting at the ignition and going to the motor. I have a parts diagram, but it doesnt say what the wires are responsible for. The motor does not have the junction box with it. All I have is the positive and ground coming out of the motor. If anyone can help me with what I need to get it water ready, that would be great. I know I should have a starter solenoid and relay, but not sure how to hook it up to make it a key start. Thanks for any help!!
 

bktheking

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Joined
Jul 29, 2008
Messages
5,057
Re: 1963 Johnson "bigtwins" 40hp

This was the diagram we used to wire up my neighbours 64

Wiring1958-61_35-40hpwithoutgenerat.jpg


You will need an ignition switch, solenoid, inline fuse, misc wire and connectors. I bought a plastic electrical box to house all the goodies.
 

engine391

Cadet
Joined
Mar 10, 2010
Messages
13
Re: 1963 Johnson "bigtwins" 40hp

You wouldnt happen to have the diagram that includes the generator do you? The diagram you provided helps tremendously by the way, just want to see how the generator is tied in to it. Thanks!!
 

bktheking

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Joined
Jul 29, 2008
Messages
5,057
Re: 1963 Johnson "bigtwins" 40hp

Yup, broke into his house with my hand held colour scanner, thanks F_R!

Google images, turned out to be way cheaper :D
 
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