72 Johnson 125hp - Lots of questions...

cbelgum

Cadet
Joined
Nov 9, 2004
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19
I have a 72 125 that I am trying to bring back to life after a LONG hibernation in a garage. I appears to have been prepared properly, fogged etc and turns over fine. The prop turns when the engine is cranked - this is normal I think as the hydro-electric won't shift into nuetral till the engine is running. The electrics on the engine are a bit messy and I could use some advice on them - see pictures below. (a wiring diagram would be great if anyone has a scan they could email me)<br /><br />Overall shot of the conection bar area, something appears to be missing as there are two loose plugs:<br /><br /> http://www2.freepichosting.com/Images/421581526/9.jpg <br /><br />and a taped bundle of these wires:<br /><br /> http://www2.freepichosting.com/Images/421581526/5.jpg <br /><br /><br />Plug 1:<br /><br /> http://www2.freepichosting.com/Images/421581526/2.jpg <br /><br />Plug 2:<br /><br /> http://www2.freepichosting.com/Images/421581526/1.jpg <br /><br />This grey wire is connected to a loose wire at the control. It is taped to a ground wire. I think it may have been connected to a tacho. Am I right, if not what does the grey wire connect to?<br /><br /> http://www2.freepichosting.com/Images/421581526/6.jpg <br /><br />I will order a manual - I have one for the 73 115hp that I own - thought it would be the same - oops!<br /><br />Thanks, this really is a great forum.
 

JB

Honorary Moderator Emeritus
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Mar 25, 2001
Messages
45,907
Re: 72 Johnson 125hp - Lots of questions...

Get a manual, SeaBee. That will answer most of your questions.<br /><br />Wiring diagrams are copyrighted, so scanning one for you would be illegal.<br /><br />Good luck. :)
 

R.Johnson

Rear Admiral
Joined
Sep 24, 2003
Messages
4,446
Re: 72 Johnson 125hp - Lots of questions...

The taped off connectors go to the clipper circuit, probably disabled when someone changed the pulse pack, and possibly the ign. coil. The rubber plug with three wires plugs into the pack, it comes from the ignition stator plate, or sensor. The plug with 5 wires connects the heat sensor, electric choke, hot horn, etc. The last plug is the main engine harness going to the control box. You will want a manual to sort this all out.
 

cbelgum

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Joined
Nov 9, 2004
Messages
19
Re: 72 Johnson 125hp - Lots of questions...

What can I say! THANKS GUYS! Once the manual arrives I will be able to sort it out, but in the mean time I was wondering if it was even a going concern... seems as though it is. Thanks again<br /><br />Chris
 
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