Dash Led Conversion

Joined
Jan 6, 2019
Messages
132
Location
USA
Since I had the windsheild and dash plastics off putting in new headlights, I decided to put Leds in the dash lights and warning lights.

This project didnt come out 100%, as did my exterior lighting mod, so I thought I’d throw it on here to show what didn’t work for me.

Here’s the bulbs I used:
image.jpg
https://www.ebay.com/itm/20Pc-T10-Wedge-Samsung-High-Power-1W-LED-Light-Bulbs-Xenon-White-192-168-194/282995461838?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

I should also point out that these particular bulbs are polarity sensitive, so its a good idea to do this mod with the key on because you have a 50/50 chance of having to flip the bulb over to get it to illuminate.

As you can see, the tach and spedo look great, clear and white:
A8307444-762A-4226-B9F1-CCDC931F4077.jpeg

Unfortunately these particular lamps, even thought they shine 360 around the sides, dont quite have enough oomph to fully light the fuel gauge, as you can see. So thats issue 1.

Being “xenon white” they are also limited in color spectrum and dont look the same as an incandescant lamp behind certain colored filters. So the oil warning lamp looks nice, but the sidestand down lamp went from amber to sickly yellow and the neutral lamp turned from green to aqua. The turn signal lamps are also yellow.
So that’s issue 2.

Finally, I had problems getting the low-fuel warning light to work correctly with an led bulb. The bike is a 1993 model, and the low-fuel lamp appears to be part of the fuel sender circuit, and being a potentiometer, sends a small current through the lamp even when it doesnt need to be illuminated. The Led lamp is sensitive enough to this tiny current that it comes on weakly, even at half tank, where a standard 158 incandescant does not. So thats issue 3.

Issue one doesnt bother me enough to buy another set of bulbs to try and fix it.

Issue 2 does, so I picked up a new set of 194 bulbs (basically interchangeable with the stock 158, just slightly brighter) so that I was putting new bulbs in, a few of the old 158s were at the end of their life and i didnt want to tear this thing down again.

Heres a pic with Led bulbs in the oil and high beam positions, and new 194 incandecent bulbs in the sidestand, neutral, and turn-signal lamps.
image.jpg

To fix issue 3, i simply put the best looking stock 158 in the low-fuel indicator (I ran out of 194s). It lights up briefly at key on and then goes out, as it should since I have just under 1/2 tank. I didnt photograph this.

And after looking at the lamps in my dark garage, I realized that the Led-powerd high-beam indicator was like a blue flashlight in my face and might negatively affect my night vision, so I stuck a 158 back in there too:
image.jpg

Safe travels all!
 
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Another member mentioned the website superbright LEDs.com, so I went on there and found an LED bulb that I like better. It’s also available in colors so that I can make the indicators the perfect shade. I bought 4 whites for gauges, red for oil, 3 amber for signals and sidestand, green for neutral, and blue for high beam.

238220

You can see how much nicer the new bulbs are made, and they really didn't cost more. I just had to buy them individually. Being smaller, they go into the sockets better, and the electrical connector is better made.

238221



The ambers leds aren't as bright as a 158, but they are still perfectly visible in full sun. The incandescant 198s are a little much at night. The green is about the same as a 198 but being the neutral, I will only see it when stopped, not on the highway. The other colors are comparable to 158 just so much sharper and vivid.

238224
 
I have done some converting to LED's as well. One big problem I had was the LED's becoming loose in the socket over time and then they start to flicker. I would re-insert them etc. and after a short time it would happen again.
 
Another member mentioned the website superbright LEDs.com, so I went on there and found an LED bulb that I like better. It’s also available in colors so that I can make the indicators the perfect shade. I bought 4 whites for gauges, red for oil, 3 amber for signals and sidestand, green for neutral, and blue for high beam.

238220

You can see how much nicer the new bulbs are made, and they really didn't cost more. I just had to buy them individually. Being smaller, they go into the sockets better, and the electrical connector is better made.

238221



The ambers leds aren't as bright as a 158, but they are still perfectly visible in full sun. The incandescant 198s are a little much at night. The green is about the same as a 198 but being the neutral, I will only see it when stopped, not on the highway. The other colors are comparable to 158 just so much sharper and vivid.

238224
Very nice upgrade. Thanks for the pics.
 
I have done some converting to LED's as well. One big problem I had was the LED's becoming loose in the socket over time and then they start to flicker. I would re-insert them etc. and after a short time it would happen again.

Yea, the cheap leds I bought from ebay were bad about that. The plastic was thicker than a regular glass bulb.

Since the bulb socket is rubber, i give it a firm pinch empty to tighten the contact a little before i put a bulb in.

You have to do it carefully though, or you can short the 2 contacts together.
 
Also, I forgot to mention these bulbs aren't polarity sensitive, the cheapys only work one way.
 
Heres a night shot, these white bulbs are the way to go! No more hot/cold spots of light and i think the color is better. Less “blue”.


238243
 
Looks good.
What did you use for the clock?

Thats factory, unless a previous owner changed it.
Does the clock have a light that can be changed?

Edit, ok i found it on the fiche... its says its a “T-5” wedge base bulb. Ill have to look that up.
The rest of the bulbs are “T-10” base
 
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Does the clock have a light that can be changed?
Yep. Plugs into the back of the clock.
I have #74 LED in my notes, but haven't done it yet.
Some folks haven't realized the clock is even lit, if the bulb was out when they got the bike.
 
Clock bulb vs 158:

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Old clock bulb vs #74 led from superbright:
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Led lit clock (cool white version of the bulb 6700k):
238440
 
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