Extra back LED light + problem - Kawasaki Versys Forum
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post #1 of 20 (permalink) Old 04-25-2016, 10:29 AM Thread Starter
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Extra back LED light + problem

I wanted more light in the back and thought to add light to the top case but then figured I often times ride without the top case so I was looking for something that will be there at all times. I ordered this reflector that has 26 LED's in it from aliexpress for $5. It was easy to install and it does not add parts to the bike because it sits where the original reflector used to be.

It has 3 wires and I thought i connected them right but for some reason it doesn't light up when I brake.... only the top light does.

Does anybody know what could be the problem and how to fix it?

Aliexpress link:
Aliexpress.com : Buy RED Lens Rectangle Red LED Reflectors Brake Light for Universal Motorcycle car truck high performance rear lights tail light from Reliable light brown suppliers on Heinmo Vehicles Parts
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post #2 of 20 (permalink) Old 04-25-2016, 02:16 PM
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I think I see your problem. The led is not wired to run both running and brake lights at the same time, although this can be achieved. The description of the light states it can be used as a brake light or turn signals. thus I would assume the black wire is ground, the red wire is positive for one side of the light, and the blue wire is the positive for the other side of the light.
How do you currently have it wired?
If you want both running and brake lights, I can show you how to do this with a pair of diodes and a resistor.
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post #3 of 20 (permalink) Old 04-25-2016, 02:45 PM
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I would like to see that, if you can put a detailed description (I'm close to 0 on electrical stuff )
Thanks!

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post #4 of 20 (permalink) Old 04-25-2016, 02:57 PM Thread Starter
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It had 3 wires, i connected black to black and red to white, and blue to green. i tried different variations but same result.
Please tell us how to make it light up when braking. thanks.
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post #5 of 20 (permalink) Old 04-25-2016, 03:52 PM
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This video describes the circuit to build.
https://www.youtube.com/watch?v=EfNZ4YXCy3s
I will post photos later of my install.
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post #6 of 20 (permalink) Old 04-25-2016, 04:05 PM
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Quote:
Originally Posted by IsraeliVersys View Post
It had 3 wires, i connected black to black and red to white, and blue to green. i tried different variations but same result.
Please tell us how to make it light up when braking. thanks.
I can't figure out what white and green wires you tapped into. You want to be tapping into the black, red, and blue wires that go to the tail light. The turn signal wires are green. I do not see any white wires.
Can you disconnect either the blue or red wire to the led and confirm that one side of the led goes off, while the other side remains lit?
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post #7 of 20 (permalink) Old 04-25-2016, 05:55 PM
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look at this photo to see the wires going into the rear light.
Black/yellow is ground, red is running light and blue (middle position) is brake light.
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post #8 of 20 (permalink) Old 04-25-2016, 06:09 PM
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Quote:
Originally Posted by IAMRA View Post
This video describes the circuit to build.
https://www.youtube.com/watch?v=EfNZ4YXCy3s
I will post photos later of my install.
Interesting video, thanks!
what I don't see: the wire with resistor is tail light, the one without is the brake light.
But in the video, he switches from one to another; in reality, the tail light is always on, and when the brake is activated, you have power coming on the no resistor wire also. My question is: does this affect the light?

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post #9 of 20 (permalink) Old 04-25-2016, 09:58 PM
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Quote:
Originally Posted by chid View Post
Interesting video, thanks!
what I don't see: the wire with resistor is tail light, the one without is the brake light.
But in the video, he switches from one to another; in reality, the tail light is always on, and when the brake is activated, you have power coming on the no resistor wire also. My question is: does this affect the light?
Running power through both wires at the same time time is not a problem. You are still using a single power source, i.e. the battery. You are just offering the current another pathway. The only effect on the light might be a very slight increase in voltage because of the slightly reduced resistance to the dc current from the battery.
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post #10 of 20 (permalink) Old 04-25-2016, 10:40 PM
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Quote:
Originally Posted by IAMRA View Post
I think I see your problem. The led is not wired to run both running and brake lights at the same time, although this can be achieved. The description of the light states it can be used as a brake light or turn signals. thus I would assume the black wire is ground, the red wire is positive for one side of the light, and the blue wire is the positive for the other side of the light.
How do you currently have it wired?
If you want both running and brake lights, I can show you how to do this with a pair of diodes and a resistor.
I would surely agree with him. Recently had the same scenario and a pair of diodes and resistor was helpful enough to solve it.
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post #11 of 20 (permalink) Old 04-26-2016, 01:09 PM
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Givi E135 LED Brake Light Kit for V47 Top Cases
Custom Dynamics MagicFlex2 9" stips (cut off 3 LEDs to fit)
Custom Dynamics Plate Frame with LED TruFLEX® Light Bar & LED Plate Illumination.

Photo 1: harness tapping into taillight.
Photo 2: diodes/resistor sets in green heat shrink. One set runs the topcase and the other runs the license plate. I added an extra resistor (red heat shrink) to the license plate to balance running lights.
Photo 3: The nest. I used so many connectors for testing and troubleshooting.
Photo 4: I was going to shorten the wires and solder connections, but it all stuffs nicely into the boot.
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post #12 of 20 (permalink) Old 04-26-2016, 03:01 PM
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Quote:
Originally Posted by chid View Post
look at this photo to see the wires going into the rear light.
Black/yellow is ground, red is running light and blue (middle position) is brake light.
CHID, that clean area at the rear of your bike is embarrassing. Mine looks like a rats nest with my Backoff and the harness's for the Admore lights that are on the Givi side cases.
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post #13 of 20 (permalink) Old 04-26-2016, 06:57 PM
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Quote:
Originally Posted by rayj View Post
CHID, that clean area at the rear of your bike is embarrassing. Mine looks like a rats nest with my Backoff and the harness's for the Admore lights that are on the Givi side cases.
sorry about that, I plan to change it soon
I already ordered an extra LED bar for brake light.

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post #14 of 20 (permalink) Old 04-26-2016, 07:58 PM
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Decided to order the light. If it's crap it's only $5 lost. Price makes me think quality is sub par, lets hope not. I like the idea of not adding any extra parts, it just replaces the reflector.

In contrast I paid $14 plus tax for package of 2 #194 Philips LEDs for city light.

http://www.aliexpress.com/store/prod...820543812.html
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post #15 of 20 (permalink) Old 04-26-2016, 09:47 PM
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Quote:
Originally Posted by IAMRA View Post
Givi E135 LED Brake Light Kit for V47 Top Cases
Custom Dynamics MagicFlex2 9" stips (cut off 3 LEDs to fit)
Custom Dynamics Plate Frame with LED TruFLEX® Light Bar & LED Plate Illumination.

Photo 1: harness tapping into taillight.
Photo 2: diodes/resistor sets in green heat shrink. One set runs the topcase and the other runs the license plate. I added an extra resistor (red heat shrink) to the license plate to balance running lights.
Photo 3: The nest. I used so many connectors for testing and troubleshooting.
Photo 4: I was going to shorten the wires and solder connections, but it all stuffs nicely into the boot.
Looks great. Surely it would be noticeable at night time.
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post #16 of 20 (permalink) Old 04-27-2016, 12:19 PM
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Quote:
Originally Posted by twowheels View Post
Decided to order the light. If it's crap it's only $5 lost. Price makes me think quality is sub par, lets hope not. I like the idea of not adding any extra parts, it just replaces the reflector.

In contrast I paid $14 plus tax for package of 2 #194 Philips LEDs for city light.

Aliexpress.com : Buy RED Lens Rectangle Red LED Reflectors Brake Light for Universal Motorcycle car truck high performance rear lights tail light from Reliable light brown suppliers on Heinmo Vehicles Parts
I just punched in phillips 194 vision led on this sellers site $46 USD for a pair, almost 4X what I paid, not including shipping

shipping was equal to one pair.
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post #17 of 20 (permalink) Old 05-26-2016, 04:00 PM
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I'm trying to add some extra lights in the back, did you use the original harness for your lights? or you brought some extra cable from the battery?

Thanks

Quote:
Originally Posted by IAMRA View Post
Givi E135 LED Brake Light Kit for V47 Top Cases
Custom Dynamics MagicFlex2 9" stips (cut off 3 LEDs to fit)
Custom Dynamics Plate Frame with LED TruFLEX® Light Bar & LED Plate Illumination.

Photo 1: harness tapping into taillight.
Photo 2: diodes/resistor sets in green heat shrink. One set runs the topcase and the other runs the license plate. I added an extra resistor (red heat shrink) to the license plate to balance running lights.
Photo 3: The nest. I used so many connectors for testing and troubleshooting.
Photo 4: I was going to shorten the wires and solder connections, but it all stuffs nicely into the boot.

Versys 2015 Green
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post #18 of 20 (permalink) Old 05-26-2016, 07:40 PM
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Quote:
Originally Posted by chid View Post
I'm trying to add some extra lights in the back, did you use the original harness for your lights? or you brought some extra cable from the battery?

Thanks
I build my own harness by getting a set of brake light connectors, Sumitomo 3 pin MT .090 - Part number "Set MT090-3C" (white in photo). Black wire is ground, Blue wire is brake light, Red wire is running light.
Motorcycle MT .090 Sealed Series - Connector and Terminals


I put a resistor on the running light, and connected to brake light, with a diode on each wire, so I have running/brake function from two wire led strips.
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post #19 of 20 (permalink) Old 05-26-2016, 09:00 PM
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yes, but you used the wires that are already there, you didn't bring anything from the battery, right?

thanks!


Quote:
Originally Posted by IAMRA View Post
I build my own harness by getting a set of brake light connectors, Sumitomo 3 pin MT .090 - Part number "Set MT090-3C" (white in photo). Black wire is ground, Blue wire is brake light, Red wire is running light.
Motorcycle MT .090 Sealed Series - Connector and Terminals

I put a resistor on the running light, and connected to brake light, with a diode on each wire, so I have running/brake function from two wire led strips.

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post #20 of 20 (permalink) Old 05-27-2016, 12:59 PM
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When I added another LED brake-light to my '15 650, I just 'tapped' into the brake-light wires under the seat, at the rear.





Running lights...



brake lights.


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