25 hp motor won't cut off

ldysmann3

Cadet
Joined
Jan 18, 2012
Messages
8
I have been messing with some wiring due to motor not starting with ignition switch. Finally, I replaced the battery cables and solved my issue. Today, I tested out the new cables and was able to get the motor started. I was feeling pretty good since I have always had to pull start it since I have had the boat. I turned the key off and the motor kept running. I unplugged both battery cables and it still kept running. Finally, I unplugged the gas and a few minutes later it ran out of gas and stopped. Not sure what the problem could be. Any ideas would be greatly appreciated!
 

James R

Commander
Joined
Feb 1, 2007
Messages
2,681
Re: 25 hp motor won't cut off

You have not said what model or year motor it is. If it is a two stroke then the key switch grounds the switch box or stator output in the off position.
Need to know what you have.
 

phebus1

Petty Officer 3rd Class
Joined
Aug 19, 2011
Messages
85
Re: 25 hp motor won't cut off

Hopefully you didn't harm the rectifier by taking the battery cables off with the motor running.

The black wire with the yellow stripe is the kill switch wire. Should go to ground with the key switch off.
 
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