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Old March 26th, 2013, 08:48 PM   #1
CThunder-blue
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Name: Tri
Location: St, Louis
Join Date: Sep 2010

Motorcycle(s): 2009 Ninja 250R, 2005 R6

Posts: A lot.
DIY: How to create Daytime Running Lights on a 2 wire system

Hi Guys,

I was going to make a kit for this, but it's just too much work for me considering the other things going on. I've drawn a diagram that should be easy to follow and will post some pics of the actual unit I made. I made this kit to be plug and play with OEM connectors (of course I did). However, you can use wire taps, although it's a more permanent solution. What the kit does is tap power off the license plate lights and steps the voltage down to ~9.5v. This illuminates the blinkers, but not at full power. When you flip the blinker on, it gets full power and "blinks." You can see this in the video. It works on both LED and standard bulbs. Actually, the kit makes more of a difference with the standard bulb since it draws more power to light. I don't have video of that, but I did test it out. The beauty of this is that it will work on any bike with only 2 wires for the blinkers.

Please note: The diagram is only for 1 blinker. In the pics, you'll see I made two of them on a project "prototyping" board. I think with the LED's, you can get away with only using 1, but you may want 2 if you are using OEM/standard bulbs. Using 2 does cut down on how much heat the resistors will generate though. I should also add that if you install this on a bike with standard bulbs, you will need to have the bike running in order to test the kit out. Otherwise, it looks like it's not working. Too much power draw for standard bulbs without having the bike's stator not giving max power.

Here are the components (x2 if you make a unit with 2):

LM317T Adjustable voltage regulator
1k ohm (1/4 or 1/2 watt) Resistor
150 ohm (1/4 or 1/2 watt) Resistor
1 diode- it can be a1N4001
1 prototype board- I used this and trimmed it to fit inside my project box.
~7' 18-22ga of black and red wire each
Project box to house the unit
Soldering iron and solder

Link to original page on YouTube.

Attached Images
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File Type: jpg IMG_1064.jpg (228.5 KB, 13 views)
File Type: jpg DRL.jpg (44.7 KB, 34 views)
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