kill switch and ing, problems

[COACH_J]

i have a 72-40hp mercury, im tring to understand the key switch-and kill switch,this is a 2 part question i belive...i understand that on the run position the a-f terminals make the run cyle, while the d-e terminals make the stopp cyle. what mine is doing is it want turn off, got it cranking fine...just want turn off. i understand this could be my key switch. but here is the 2nd part of my question, if my kill switch is working correctly shouldnt it kill the motor when i pull the lanyard to stop it,,,,,neither works, so im really dumb-founded now. i know that the salmon wire and the ground wire make up the off/kill switch cycle, even if the key switch is bad shouldnt the kill switch turn the motor off, for saftey reasons? thanks im just a little lost on this

 

[Charlie61]

Re: kill switch and ing, problems

i have a 72-40hp mercury, im tring to understand the key switch-and kill switch,this is a 2 part question i belive...i understand that on the run position the a-f terminals make the run cyle, while the d-e terminals make the stopp cyle. what mine is doing is it want turn off, got it cranking fine...just want turn off. i understand this could be my key switch. but here is the 2nd part of my question, if my kill switch is working correctly shouldnt it kill the motor when i pull the lanyard to stop it,,,,,neither works, so im really dumb-founded now. i know that the salmon wire and the ground wire make up the off/kill switch cycle, even if the key switch is bad shouldnt the kill switch turn the motor off, for saftey reasons? thanks im just a little lost on this

yes the kill switch stops your engine one side go to ground, your switch may not be wired in checkyour manual for wiring

 

[COACH_J]

Re: kill switch and ing, problems

ok one side of the kill switch is tied to the salmon wire the other side is connected to the ground. is this correct?

 

[Charlie61]

Re: kill switch and ing, problems

need to know is it a two three or four cyc. and the ser number to get the right wiring

 

[COACH_J]

Re: kill switch and ing, problems

it a 2cyl....ser.......3592594.....thanks

 

[Charlie61]

Re: kill switch and ing, problems

I could not fine a 1972 40 hp with 3592594 I could fine a 1973 mo 402 with that number . so i can't help you maybe this will help you ones again sorry tryed to download wiring di but couldn't try www.maxrules.com

 

[Faztbullet]

Re: kill switch and ing, problems

ok one side of the kill switch is tied to the salmon wire the other side is connected to the ground. is this correct?

That is correct for that model...I have seen the pins in harness loose connection so ohm them out. Attach a jumper wire to the salmon on switch box and ground and see if it will start, if it does with jumper attached the switchbox is bad.

 

[COACH_J]

Re: kill switch and ing, problems

ok got it, it was the salmon wire coming from the ing-box on the motor, cranks up, and turns off,,,,now to head to the river and try her out, thanks for all the help