1988 90 HP Johnson Outboard Ignition switch QUESTION

Mr Mudd

Cadet
Joined
Dec 21, 2013
Messages
11
I have a 1988 90 HP Johnson outboard. The ignition key switch went bad so I replaced it. I did the work myself. Now that its replaced the motor starts without problem. However, when I turn the key off the motor continues to run. I'm not sure what I did wrong, but obviously I screwed something up. It's the type that's mounted in the console not in the control box. Can anyone offer any suggestions? I'd be more than happy to take pics if anyone thinks that will help diagnose the problem. I'd greatly appreciate any help!
 

Bosunsmate

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Apr 7, 2012
Messages
6,135
Theres a black yellow wire which must be contacted with ground to turn the motor off.
See if you can find that in the key switch, maybe you put it on the wrong point
 

Bosunsmate

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Apr 7, 2012
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6,135
Thats a black wire with a yellow stripe, it goes back to the powerpack to kill the ignition when connected to ground
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
The switch connects the Black/yellow stripe wire to black wire (ground) to kill the motor. So, those two wires must be connected to the "M" terminals on your switch. Are they?
 

Bosunsmate

Admiral
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Apr 7, 2012
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6,135
Another reason may be that the neutral (ground) all black wire isnt hooked up to the switch so the switch cant connect the black yellow to ground
 

Mr Mudd

Cadet
Joined
Dec 21, 2013
Messages
11
Thank you so much for the suggestions! As long as the weather permits, I will check this out tomorrow and get back on here and post an update.
 
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