Here's the results from my work with LEDs.
The good news: I obtained the results I wanted with the instrument lighting.
The bad news: I tried for bonus points by replacing the 1157 bulbs in the brake/tail light with LED. No bueno.
Here's the bad. Brake lights with LED
Vs. Brake lights with traditional bulbs.
Significantly dimmer with the LED, and I'm not game for that.
Now the good news.
This didn't photograph as well as I'd wanted it to, but the annunciator light to the right is the LED. It's brighter, and a cool-white vs. a yellow.
Here are the instrument back-lights for comparison. The LED vs. the incandescent with a white diffuser.
So here's the tech tip.
A) This is a fiddly-job. Re-assembling the gauge cluster is a royal pain.
B) The small idiot lights are polarized. 50/50 you install it backwards (To no harm of the LED light). You can test every light as you install them, except the low-fuel light. So, either start the job when your fuel light is on or siphon gas. I had to siphon, and determined it was backwards.
The indicator/idiot lights are much more usable. That was my main goal. Now I can't wait for a night time ride and see how the instruments look with their LED light.