when you switch-off the light the L.E.D remains on for few seconds{5-7 sec} & completely goes off in 2 minutes, is this due to the use of capacitor or there is some thing wrong in my circuit, ie 4 L.E.D in series with 195 ohm resistance, 1000 micro farad capacitor 25v
or is this normal

yes i have tried them on LCD panels ... but not on the bikes ... i did it on my Pioneer CDJ 700s - they had this annoying orange light at the back / i looked for the Electroluminescent Panel / did not getone so tried LEDs ... it worked but the light spread was not even ... so tried the small neons ... it worked well ... n each 0f these sets only consume 5 w ... so replaces over 6 lights under on lcd ... with one tube ... n as these are cold light source ... no heating issues ...

If iam not wrong we use LED displays and not LCD dispalys. Read somewhere in the bikes service manual i guess.
@ abhijeet
Is the job that simple that the meter can be opened at home and the new LED can be soldered then and there itself?

Whoa man! Neon for back lighting? Have you actually tried it out? These displays use simple LEDs. Just replacing them would change the back lighting colour.

Guys, to change orange colour of LCD to white say in UG3, first note that they use Electroluminescent Panel or EL panel to backlit the display. They come in different colours. In pulsars, apache its orange, yellow, blue, etc. In R15 its white. Its a thin sheet of semiconductor material which glows uniformy and very bright... Even in analog meter console of cars, the same is used. So try if you can get it - Electroluminescent EL Panel / Sheet

hi abhijeet good work,
i tried this once ... and had a problem ... the internal resistance was so high that my dynamo started heating up and the bike started missfiring .... i disconnected the leds and the problems solved.
i had used one led (for each buld in the meter console) in series with a resitance (don remember the value) ...
can u mail me the circuit ... for the meter console ...
n did u convert u'r full wiring to DC ... as in my bike the apache the meter lights are run directly from the dynamo

Similarly, I have also used white LEDs in the meter console. The while LEDs combined with the green screen found under the dials combine to give a cool teal colored glow! But this time, I forgot to click snaps while opening the console and fitting the LEDs!

here's few day time pics of my ride.

Hi guys, recently I decided to replace the bulb in the tail light of my bike with LEDs. The procedure I followed is described below. Hopefully it will help someone else contemplating making the same mods.

Here is a pic of my bike



First, I have created a circuit board in the shape shown and mounted the LEDs. I used 10mm Red LEDs. The LEDs were soldered as per the circuit diagram. Diode used is 1N4007. Capacitor is 1000uF. Resistor - 200 Ohm.









As the parking tail light runs on AC, so used a bridge rectifier circuit to convert to DC. Capacitor is needed to reduce flickering. Now, I did not want any wire slicing. So used the old bulb to power the LEDs as shown..







The final product looks like this.



I am sorry that I have only one snap of the final tail light at the moment. Also this snap does not show the brake light. Only the parking light. Also at night, the number plate is covered with a cool red glow! I can upload further snaps as and when I click.

Similarly, I have also used white LEDs in the meter console. The while LEDs combined with the green screen found under the dials combine to give a cool teal colored glow! But this time, I forgot to click snaps while opening the console and fitting the LEDs!



I will be happy to answer any doubts regarding the mods.

Now, the reasons for doing all this? Agreed, the LEDs look cool. But I wanted to save power. LEDs consume hardly anything - each LED consume 40 milliwatts. The tail light consumes 5W, brake light - 21W and meter console lights - 3W X 3 = 9W. But as the brake light is not on continously, I save atleast 5W + 9W = 14W. Also, I have removed the front pilot light. So, total 19W saving. So for what purpose? To install a powerful headlight instead of the present 35W comfortably. After the mods, I can now easily install a 55W light without any strain on the alternator.

I will be shortly installing a new headlight. But, I recon I need to change the reflector too. Can you guys suggest which reflector to use? My bike is the old model P150 with round headlamp. I preferably want a direct fit. (Maybe Ambassador silbeam or maruti omni, maruti gypsy, trucks etc)

P.S. - All snaps were taken using my MotoROKR E6.