120 johnson keeps running

john day

Cadet
Joined
Jun 28, 2012
Messages
14
I had a no spark problem just after the motor was running great. Thought it was the powerpack so I bought a new Sierra and the motor fires right up and runs great but will not shut off with key. I have to pull three plugs to get it to stop. I've checked wiring by making sure when the key is on there is no continuity and when the key is off there is continuity to the pigtail at the powerpack.

The powerpack ground is grounded to a coil block bolt and then to the motor.

Are there any tests I can do the a standard volt/amp meter?

Can I run a wire from the black and yellow wire on the powerpack to ground to see if it stops the motor or causes a no spark?

Thanks, John 1989 Johnson 120 looper
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 120 johnson keeps running

Yes, do that and let us know what happens.
 

john day

Cadet
Joined
Jun 28, 2012
Messages
14
Re: 120 johnson keeps running

Thanks Boobie, I did that and the motor stopped. Looking at the kill circuit plug under the powerpack, it seems the male prong coming from the ign switch must have deteriorated to the point it doesn't make contact with the side going to the powerpack. So I ran a wire with an alligator clip on one side and skinned back wire on the other end and I can start and stop the motor with the ign switch.

Everything is good, I'll just have to splice a new end in. Thanks for you help.

John
 
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