omc igniton wiring HELP PLEASE

mckinneyboat

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Joined
May 24, 2009
Messages
29
I have a 1989 four winns with an ignition showing the B S I terminals. My husband whos not to good at wiring disconnected the trim and old depth finder to install a new depth finder and unfortunately did not make a diagram of where the wires go back. We have looked for a diagram and even have a manual but cant find anything showing this ignition and its wiring. Can anyone help us. We are dying to get our boat back on the water.
 

Silvertip

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Joined
Sep 22, 2003
Messages
28,771
Re: omc igniton wiring

Re: omc igniton wiring

Another lesson learned. Always mark wires before you disconnect them.
B = battery Positive (12 volts from the engine harness).
I = Ignition (goes to the ignition system)
S = Starter (goes to the starter solenoid).

If you don't know which wire color is which function, chances are the red one is +12 volts. You use a test light or a voltmeter to measure this. If that's the wire attach it to the B terminal. You then turn the key to RUN and measure the other two wires. S should not be active but I should be on one of the wires. Attach that one to the I terminal. Guess where the other one goes. :)
 

mckinneyboat

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Joined
May 24, 2009
Messages
29
Re: omc igniton wiring

Re: omc igniton wiring

Yes i bet we dont make this mistake again. Still not sure which color wires go where since I took them off the original depth finder and since none of our gages are working. The boat would turn over but never go ahead and start when we took it last. So our guess is i have crossed up some of the wires. I had our son unhook the depth finder but guess what our son does not remember where he disconnected them from. By reading up on this boat it sounds like I broke the circuit by unhooking the old depth finder. I'm sending some pics of the ignition and fuse panel to see if you can help.

Thanks
 

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mckinneyboat

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Joined
May 24, 2009
Messages
29
Re: omc igniton wiring HELP PLEASE

Can anyone help with this wiring issue. I have posted a couple of pics that might help. Were not sure what we have crossed up.
 
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