How to: 3 wire to 2 wire indicators/running lights - Sportbikes.net
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post #1 of 9 (permalink) Old 07-13-2006, 05:56 PM Thread Starter
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How to: 3 wire to 2 wire indicators/running lights

So you have a strong desire to mount super cool LED turn signals to the front of your ride, but you also want to have running lights for nighttime saftey. How in the heck do you hook up those 2 wire indicators to your stock 3 wire mount and still have running lights?? Well, you can go out and spend lots of money on a pre fabbed kit just for this task, or you can do it the old fashioned and visit your local radioshack. So you have never ventured into the electronic parts section of your local shack? Shame on you!

Here is what you will need for this mod:

2x 12v triggered SPDT relays. I picked the 10 amp mini ones instead of the micro ones because it is rated for higher temperature ratings, important since this is going under my tank. Yeah its overkill, and yeah it makes an audible click when it flashes, but that only makes it way cooler! You can also use automotive relays if you dont have soldering gear, I believe you can buy crimp on connectors that slide right on.

A small PCB for mounting your stuff if you want to centralize your flasher stuff like I did (if you go with soldering the PCB mount components like I did).

Some wires and some connectors to hook wires to other wires. I used some molex connectors from old computer junk.

Some time, possibly a few beers (not too many if you are going with the soldering route)

Just follow this simple wiring diagram to hook up your relays. Yours will most likely not have this layout, but it will have all the same basic labels. The colors of the wires will most likely differ from bike to bike, but generally green is a ground (or -) my blue wire was my running light's + wire (always ON) and the black wire was the flasher. They also usually differ from right side to left, if you get it backwards you can always unplug them and switch them around. The indicators I bought had blue as the + and green as the -.

If you want to slow down the blinker, install one of these between the flasher signal and the coil. It will add resistance just like a regular bulb and you will not have to buy a new flasher relay. I personally like a slightly more frantic flash so I didnt install one

This is what it should do when you're done: http://video.google.com/videoplay?do...01953182957322

Let me know if you have any questions.
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Last edited by killernoodle; 07-13-2006 at 06:43 PM.
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post #2 of 9 (permalink) Old 09-16-2009, 11:30 AM
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thanks for the info! Had to buy bigger lights to pass inspection and the 3 wire signals are far and few...
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post #3 of 9 (permalink) Old 09-16-2009, 12:44 PM
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Oh, btw, have you had any problems with the RS relay??

The website says max temp is 65 Fahrenheit. so you cant signal in summer??
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post #4 of 9 (permalink) Old 09-17-2009, 11:59 AM
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there is a how-to section ya know...

http://www.sportbikes.net/forums/how-tos-section/
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post #5 of 9 (permalink) Old 09-17-2009, 12:20 PM
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Um, ok... I guess...
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post #6 of 9 (permalink) Old 03-26-2010, 02:59 PM
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ok i know this is an old thread but was wondering if anyone could help me i have the relays and stuff hooked up i tried with and without resistors but i still cant get them to flash here is the lights i have Amazon.com: Honda CBR 600 F4i Flush Mount LED Clear Turn Signals: Automotive if anyone has any ideas that would be awesome
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post #7 of 9 (permalink) Old 05-08-2010, 10:46 AM
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Im havin the same trouble so if u find out let me know!
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post #8 of 9 (permalink) Old 05-08-2010, 11:39 AM
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Quote:
Originally Posted by Sceptre6 View Post
ok i know this is an old thread but was wondering if anyone could help me i have the relays and stuff hooked up i tried with and without resistors but i still cant get them to flash here is the lights i have Amazon.com: Honda CBR 600 F4i Flush Mount LED Clear Turn Signals: Automotive if anyone has any ideas that would be awesome
Without a wiring diagram and instructions, it's hard to know why they don't work. Are they 2 wire or 3 wire? How did you connect them?

BUT, why would you want to RECESS your turn signals?!?!?!? Flush mounts are bad enough, but those signals would be invisible from the front if mounted as shown in the picture.

Moderator - New riders, help me fix it and riders' gear. Send me a PM with questions, suggestions, or issues.

Never out-ride your ability to react (even stop) within the distance you can see (at least on the street).

Great content for new riders at:

http://www.bestbeginnermotorcycles.com/
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post #9 of 9 (permalink) Old 10-25-2011, 10:56 AM
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Need some additional help.

This is what I did and all I git was a locked signal indicator, nothing works until I unplug it.

http://www.sportbikes.net/forums/images/attach/jpg.gif

Let me know if you have any questions.[/QUOTE]
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Last edited by vernonea; 10-25-2011 at 11:00 AM.
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