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Ignition Box

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I think it is called an ignition box. It is the "box" looking thingy that the key goes into on my 1989 Cajun. I have a Johnon 70 two stroke on it. Anyway, the box is raggedy looking and the electronic choke is hit or miss, cables feel like they "stretch" at the point of the box. Boat runs great but now the ignition key base on the box is loose.

Basically I need to replace the box. Do I match the box to the boat or the motor when I'm searching around?

And is this a pretty simple job? Or do I need a pro tech to do the job? I have years of auto tech experience and tons of tools.

Didn't know how much of a job this is.

Thanks!

Joe

  • Author

Also, will the unit come with a new key? Or does it use the internals of my existing ignition cylinder?

  • Super User

If its the control until, with the forward/reverse lever in it also, When you price one, even a used one, you will probably change your mind and decide you might just want to tighten up the switch in that one and make what ever repairs are necessary.

 

As for different models, you have to make sure the replacement has the same color connector that goes into the motor.  There are at least two different models, and I don't remember when they made the change.  They may have also changed again in recent years.  

 

I think the one you need has the red connector.  Also watch out for some of the late 70's unit.  OMC made a hydraulic assist lower unit for a couple of years that shifter backwards for all their other unit, and the control box off that motor only works on that lower unit. 

 

After you get you jaw off the floor when they tell you the price of a new one and you get one, it should have the switch and keys in it.   A used one may or may not have the keys, but if you have the letter/number off the key, the dealer has replacement keys.

 

The switches are not that expensive for one if you need to replace the switch, but it doesn't take much just to tighten one up if it's just loose.  Just be aware, there are several different type, so make sure you get one with the same terminals on the back as yours.

 

If it does not have the shifter in it and just mounts in the console, they call those helm key switch units and are cheaper.

  • Author

Over $330 for the unit. I spent under $10 and tightened the unit myself. Painted it too and looks and functions new. :-)

  • Super User

Yea, looks like my crystal ball was working pretty good on that one.

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