Run away engine

[gizzy]

I swapped out a 1989 150 Evinrude for a 1991 175 Johnson engine. I had to walk all the wires over from one to another on the wiring harness. I have everything going great, rebuilt the carbs and so on then got it it started. But, I couldn't shut the motor down. I'm lucky it was only ideal ling. I had to choke it out and even then I had problems shutting it down. I ran back through all my wires and I have to be missing something here! Is there a fix that I can check for ?

 

[ezeke]

Re: Run away engine

The engine is turned off by shorting the powerpack, using the black wires with yellow stripes in the main harness. This wire connects to the ignition switch on the large M post and is gounded to the black wire on the small M post when the key is turned to 'Off'. http://www.maxrules.com/graphics/omc_pics/REMCONTBOX.jpg

If the wires won't connect at off or when the emergency lanyard is pulled, check the wiring all the way to the powerpack, then the switch. You can test with an ohmmeter, but have the battery disconnected; any voltage on the black and yellow wire can destroy the powerpack.

 

[hollywood1972]

Re: Run away engine

hey gizzy! if you get it fixed can you post the resolve?im still having that same issue and ive checked wiring and the switch,i think there is something i wired wrong off the solenoid.

 

[Robbabob]

Re: Run away engine

I swapped out a 1989 150 Evinrude for a 1991 175 Johnson engine. I had to walk all the wires over from one to another on the wiring harness. I have everything going great, rebuilt the carbs and so on then got it it started. But, I couldn't shut the motor down. I'm lucky it was only ideal ling. I had to choke it out and even then I had problems shutting it down. I ran back through all my wires and I have to be missing something here! Is there a fix that I can check for ?

I'm sorry if this is a dumb comment... Did you check to see the wiring harness it set up identical for both motors?

I work in robotics and have made the mistake of assuming with a connector from one robot model to another. Blew the pcb and the fried the connector. I then reviewed the proper schematic to realize the mistake. Only took 5 minutes to see my error, but $1,200 to fix.

Probably not fitting, but my .02

Good luck!