LED Turn Signal Conversion - Honda Shadow Forums : Shadow Motorcycle Forum
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post #1 of 28 (permalink) Old 11-22-2011, 12:08 PM Thread Starter
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LED Turn Signal Conversion

I did a quick search and didn't see this specific mod. I did this to my bike awhile back, and it helped visibility tremendously.

Some of you may have seen this mod and have already performed it yourselves. For those who havenít, this is the least expensive way I have found to do it. This write-up is for adding LED rings into the blinker assembly on bikes that only have one tail/brake light. This mod will add two more tail/brake lights for increased visibility. I have added LED rings to my turn signals as well as a Wig-Wag brake flasher, which I will cover in another write-up. Note: this mod is for stem-mounted turn signals, but can be adapted for integrated-style turn signals (Gold Wing and other touring bikes) fairly easily. Read these instructions in their entirety before attempting this modification.

If you want to skip the creative part of this project and simply buy the LED ring kit for stem-mounted signals with the wiring harness preassembled, you can purchase it here for $49.99 plus shipping.

http://www.electricalconnection.com/...star&sport.htm

The pre-fab kit for touring bikes is here:

http://www.electricalconnection.com/...ng/tsk-int.htm


For the inexpensive version, you will first need to measure the diameter of your turn signal housing. It should be around 60mm (2 3/8Ē), but it could possibly be 80mm (3 5/32Ē) or larger. For anything less than 80mm, use a 60mm ring. LED rings can be found here:

LED Strip, Accent Lighting & LED Modules - Super Bright LEDs

Parts List

2- Red 60mm AE series Angel Eye Headlight Accent Rings ($5.95 ea)
2-220 ohm ľ watt resistors (Around $2 for a pack of 4, or $0.05 ea if you can find a store that sells singles)
Several feet of 18-22 AWG wire (You can use speaker wire, if you have it)
Heat shrink or electrical tape
Soldering iron
Rubber cement (or the like)

The Operation

Build your wiring harnesses (you will need two of these) by cutting three lengths of wire, soldering the 220 ohm resistor in line with one of them, then connecting all three to make a wye. Heat shrink or tape the two input wires individually, then heat shrink or tape them all together. See diagram below for visual reference.

The wires on the LED rings from SuperBrightLEDs are not marked positive and negative, and LEDs will not work if connected backwards. You will need to connect the rings to a 9v battery to determine polarity. Once you determine polarity, mark the wires for future reference.

After you have built your wyes, dismantle your blinker assembly and remove the lenses. Depending on how your bike is wired, you may or may not choose to remove your tail light as well. You will just need access to the brake input signal (this should be the green wire with a yellow stripe) that feeds the brake light from the brake light switch, and the tail/running light wire (should be the brown wire). Note: Performing this step first can give you a better idea as to how long the wires for your wyes need to be.

Center the LED rings in your turn signal lenses with the LEDs touching the lens. Use the contact cement to secure them in place.

Now itís time for splicing. Strip back a small section of the brake light wire, the running/tail light wire and each turn signal wire. Note: The turn signal wires will probably be blue. The solid green wire on most imported bikes is the ground wire.

Connect the wire with the resistor to the tail/run circuit. Connect the non-resisted wire to the brake circuit, and connect the remaining wire from your wye to the positive wire on the LED ring. Connect the ground on the LED ring to the positive turn signal wire. Because of how LEDís work, wiring in this fashion will turn the LED ring off when the turn signal is illuminated, and back on when the turn signal bulb is off, and will result in an Amber/Red/Amber flash while signaling a turn.

How you run/hide the wires is up to you, but things are already pretty crowded from the factory, so the less wire you use for your harnesses, the better. Just donít short yourself and end up having to rebuild your harnesses. I created the diagram below for visual reference. Feel free to contact me for any questions you may have.

Pinball



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post #2 of 28 (permalink) Old 11-22-2011, 07:00 PM
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Excellent job! This is very similar to what I did to my Magna. I followed this guide:

Rear Running Lights Mod Bareass Choppers Tech Pages

and got the parts from here:

Honda VTX Turn Signal Run Brake Turn Conversion

I also choose to use the Signal Dynamics Wig-Wag modulator with this setup. It works really well, especially when coupled with clear signal lenses (if you can find them).


- Charlie
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post #3 of 28 (permalink) Old 11-22-2011, 11:24 PM Thread Starter
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Thank you. I originally saw your guide on a VTX forum. Didn't want to build my own LED rings, and a buddy of mine pointed me to superbrightleds.com. Worked out beautifully. I ended up going with smoked lenses on mine, and I'm thoroughly happy with it. Do you have your Wig-Wag wired to light your tail, then the converted lenses, or just wag your converted lenses left and right?
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post #4 of 28 (permalink) Old 11-23-2011, 07:12 AM
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I wired one channel to the outboard lights and one to the main tail light. I debated several different configurations but I liked that one best. It's easy enough to change if I want to since I used plugin type connectors at the wiring harness under my seat.

- Charlie
96 VF750C Magna - Pearl Shining Yellow
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post #5 of 28 (permalink) Old 11-23-2011, 07:46 AM
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great instructions and a cool mod... do the red leds show up as red under the amber lens?

2002 Honda Sabre

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post #6 of 28 (permalink) Old 11-23-2011, 02:26 PM Thread Starter
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Quote:
Originally Posted by ijoe View Post
great instructions and a cool mod... do the red leds show up as red under the amber lens?
Yes, they do. They're not as prominent in the daylight, but at night they make a huge difference.
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post #7 of 28 (permalink) Old 11-23-2011, 02:28 PM Thread Starter
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Quote:
Originally Posted by LIMagna View Post
I wired one channel to the outboard lights and one to the main tail light. I debated several different configurations but I liked that one best. It's easy enough to change if I want to since I used plugin type connectors at the wiring harness under my seat.
I have mine wired the same way. I think it's less likely to get it confused with a blinker.
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post #8 of 28 (permalink) Old 11-24-2011, 01:27 PM
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Just a note on LEDs behind lenzes.
The Lenz should be the SAME colour as the LED for the best visibility. A Lenz of a different colour will diminish the amount of light transmitted. LEDs differ from incandecent lights in that they transmit light of a single wavelength not broad spectrum light.



1998 VT1100T A.C.E. Tourer
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post #9 of 28 (permalink) Old 11-24-2011, 02:54 PM
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Quote:
Originally Posted by pinball View Post
Yes, they do. They're not as prominent in the daylight, but at night they make a huge difference.
If you ever get a chance to make a video clip I'd love to see them.
nice job on the mod and post.

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post #10 of 28 (permalink) Old 11-26-2011, 02:22 PM Thread Starter
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Originally Posted by Scrapdog2grand View Post
If you ever get a chance to make a video clip I'd love to see them.
nice job on the mod and post.
Thank you. I finally shot a vid and got it uploaded. I shot it with my cheap digital pocket cam, which doesn't allow me to correct the lighting. Closest I could get was to use a blue color cast, but everything still looks orange. None of the lights appear orange (except the blinkers) when viewed in person.

Ugh...video won't embed. Guess that's what I get for not using YouTube. Click on the image, and it will take you to the vid.



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