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Kill switch help
- Thread starter Flash1977
- Start date
To stop the ignition firing the black white wire from the control module must be connected to ground.
By connecting the relay as shown with the relay coil connected to the red white the stock XS engine on/ off switch can be used.
I think that the Red White wire is used to feed 12V to the coils on a stock system.
If you dont have that you can use almost any switch you like to connect the black white to ground to stop the ignition firing.
By connecting the relay as shown with the relay coil connected to the red white the stock XS engine on/ off switch can be used.
I think that the Red White wire is used to feed 12V to the coils on a stock system.
If you dont have that you can use almost any switch you like to connect the black white to ground to stop the ignition firing.
Flash1977
XS650 Addict
That is what I thought, and I was told this from another as well. I questioned it because every similar diagram I see on line for the adding a kill switch is using 3 wire coil, and the don't interrupt the ground . Or maybe it is a ground and I don't realize it because it goes through a pamco or something before it shows grounding. Also I should have mentioned that I have a water proof marine key start style switch . So it has run and start in the switch. I had it working last year and the year before, but when I disassembled the bike to paint and do a big bore kit I took it apart. While it seems easy enough to wire up some how something is wrong . The bike will start but won't shut off after I get it running unless I pull the spark plugs. I have checked and rechecked everything and can't find the problem. It only has a headlight, tail light and a rear brake switch to add to accessories. Pretty simple. So I figured adding a kill switch would solve the shutting off problem allowing me to get the carbs dialed in, and maybe help the problem to show it's self. I should have one anyways.
Flash1977
XS650 Addict
I find it hard reading a big block of text try breaking your posts into paragraphs or put spaces between sentences.
Reading you had your bike painted , have you got good clean paint free ground connection for the side of the kill switch or relay that connects to ground.
Paint is a good insulator.
Use the relay to switch the black white to ground. Energise the relay coil from the terminal on your run /start switch that is live in the run position.
To confirm the black white is not a ground wire , it is the wire from the ignition module that connects to ground to stop the sparks.
The ground wires from the ignitor are black and black /red and remain connected to ground .
Reading you had your bike painted , have you got good clean paint free ground connection for the side of the kill switch or relay that connects to ground.
Paint is a good insulator.
Use the relay to switch the black white to ground. Energise the relay coil from the terminal on your run /start switch that is live in the run position.
To confirm the black white is not a ground wire , it is the wire from the ignition module that connects to ground to stop the sparks.
The ground wires from the ignitor are black and black /red and remain connected to ground .
I would make sure you’re not feeding power through that switch in the off position. Even if you kill the ignition with a switch a trickle to other components may cause problems.
Flash1977
XS650 Addict
I've been looking for that but can't find it
Maybe a dumb question but can you start the bike with the key in the off position?
Flash1977
XS650 Addict
Glad you said that I was thinking you were talking about the black wire from the coil. So anyways are you saying that I should put a toggle switch on the black and white wire between the relay and the cdi box? Or something more clever because it will have to go to ground not just break.
I'm not sure how to do that. How would I use the relay that's being used? or are you saying use another relay? The strange thing is it worked fine for the last 2 years. I'm not sure what else I did wrong .I'll post a pick of the ignition using
No, the key is the start button. Just like a car. Run/start/off all in one key.
Attachments
Sorry if you are confused.
The black white wire from the control box when connected to ground should stop the ignition.
You can use a switch or the relay to do this.
To use the relay wire it as shown on the diagram. The numbers can be hard to see , take a photo with your phone and mag it up to see the numbers .
If you put a jumper wire from the black white to ground does the ignition stop sparking?
Have you checked the ground connections are clean and paint free ?
If using the relay can you hear the relay coil working when you turn the key on and off.?
If using a relay have you got the wires connected to the correct pins on the relay as per the diagram ?
As you had the wiring working then pulled it apart for painting the place I would look are for wiring connection errors or paint/ dirt under earth connections.
Have you got a good electrical connection between the motor and the chassis where you are grounding the black white wire. Could be paint under the engine mounts . To check run a jumper wire from the motor to the chassis again good clean connections needed for a valid test.
The black white wire from the control box when connected to ground should stop the ignition.
You can use a switch or the relay to do this.
To use the relay wire it as shown on the diagram. The numbers can be hard to see , take a photo with your phone and mag it up to see the numbers .
If you put a jumper wire from the black white to ground does the ignition stop sparking?
Have you checked the ground connections are clean and paint free ?
If using the relay can you hear the relay coil working when you turn the key on and off.?
If using a relay have you got the wires connected to the correct pins on the relay as per the diagram ?
As you had the wiring working then pulled it apart for painting the place I would look are for wiring connection errors or paint/ dirt under earth connections.
Have you got a good electrical connection between the motor and the chassis where you are grounding the black white wire. Could be paint under the engine mounts . To check run a jumper wire from the motor to the chassis again good clean connections needed for a valid test.
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Yes but with the key off have you kicked it to see? If it still runs after the key is shut off it may always be on.
Flash1977
XS650 Addict
So, I don't know if I mentioned this yet but yes all grounds are clean and everything seems to function correctly. It just won't shut off which I know means something wrong. Anyways I'm about to wire the kill switch and I noticed something. I will include a pic of the relay drawing. I am currently using 87a for the
Flash1977
XS650 Addict
87a to black white and 30 to ground looks correct to me.
When the relay is de energised the black white is connected to ground.
Try stopping the motor by directly connecting the black white to ground.
Then start working backward from there, adding a switch will only complicate things at this stage.
When the relay is de energised the black white is connected to ground.
Try stopping the motor by directly connecting the black white to ground.
Then start working backward from there, adding a switch will only complicate things at this stage.
Flash1977
XS650 Addict
So I think I may have figured it out. So far so good. I accidentally discover that a wire to my head light was getting pinched by the fork area . I fixed that and so far so good. With that said I'm still expecting the problem to come back but I just took a ride for about a mile and it still shuts off. I'll keep you posted. Thanks for all the help, and I still plan to wire in a kill switch for safety.
