Evinrude 7.5hp kill switch issue

[Jackstrobel]

Jack Strobel - I have a 83 Evinrude 7.5 hp, the kill switch in the handle doesn’t work! I installed a switch on the side and have continuity from the ground, thru the switch to the coupler. Somewhere between that to the power pack it fails or the kill switch wire is non working? Help !!!

 

[alldodge]

Welcome

To kill the motor the Magneto needs to be grounded, should be Black/Yellow. Maybe a bad connection in the connector (coupler)

 

[FishAtFive]

When I went through kill switch drama on my evinrude I made the mistake of buying a cheapo replacement from Amazon. Turns out even the slightest voltage leak will kill the motor, which of course the Amazon switch had. Cost me about two days of banging my head on the wall before I figured it out.

 

[saltchuckmatt]

Jack Strobel - I have a 83 Evinrude 7.5 hp, the kill switch in the handle doesn’t work! I installed a switch on the side and have continuity from the ground, thru the switch to the coupler. Somewhere between that to the power pack it fails or the kill switch wire is non working? Help !!!

So just to be clear, kill switch will not shut the engine off or it won't allow it to start?

 

[Crosbyman]

see maxrules diag. if it helps looks like kill is a normal open switch. should be easy to track down

Mercury Outboard Wiring diagrams -- Mastertech Marine

WIRING DIAGRAMS ARE HERE FOR MANY MERCURY OUTBOARD MOTORS

maxrules.com

 

[racerone]

Evinrude motor

 

[Crosbyman]

oops brain fart

 

[Nordin]

That engine suppose to have CDI ignition and you kill it by grounding the pack out.
If it does not stop when trying to kill by the switch and you have continuity through the switch to the connector there might be problem with the kill circuit in the CDI pack.
I have had this kind of issue with some Evinrude and Johnson.
Especially with the engines with the CDI pack under the flywheel (1989-later) but also with some that has the pack outside the block.

 

[Jackstrobel]

I had a good ground and it was good up to the connection and I don’t want to cut the black/yellow wire after that if I don’t have to???

 

[saltchuckmatt]

I had a good ground and it was good up to the connection and I don’t want to cut the black/yellow wire after that if I don’t have to???

Cut it and use a good marine but splice or pull the pin. Rubbing alcohol and a MacGyver tool works great. You need to know.

I've seen and experienced what Nordin is talking about. Tested fine but wasn't. Micro voltage doesn't count sometimes.

 

[Crosbyman]

when all else fails use the old method... choke it ! it always works. no wiring needed oils the innards

 

[saltchuckmatt]

when all else fails use the old method... choke it ! it always works. no wiring needed oils the innards

and spark plugs clean up easy!

 

[Nordin]

Yes, Crosbyman is right about using the old method to choke it until it stops.
Two ways to go, change the CDI pack or use the one that is at the engine and kill it by the choke.