[DavidMeermans]

I checked the voltage to the LEDs (gray wire from right handlebar switch) using an oscilloscope and it runs about 14 volts with a short spike (about 1 more volt, I think--did not write it down) at each sparkplug firing.  On http://reuk.co.uk, I found a circuit for a voltage regulator using an LM2940T-12 and a 100uF capacitor.  I assembled the regulator on a test board today and it completely smooths the voltage at 12 volts. 

Since the LEDs are pretty cheap, they likely have only a resistor to limit the current and so depend upon steady supply voltage.  Two to three extra volts will let them draw too much current, which will wreck them.  I will see if the regulator helps as I will replace all the LEDs.

I will install it next week after I receive some Hitachi connectors to let me add it without cutting wires.

[Ice]

Bookmarked for DavidMeermans update 

Btw, this voltage regulator you mention,,is it a thermal resistor ?

[single]

Very good,Geirskogul.I actually spelled that from (alleged) memory.Thanx for mentioning Oldsmobile.G.M. forgets,but I won't.And,Dan,my cowl lights are still glaring defiantly.Love the bluish look.

[Ice]

Fellas, are there any L.E.D.s that survive in elevated temperature enviroments ?
It would be nice to have an LED pilot lamp for use in my H4 halogen headlamp .

[clamp]

yeah fit some LED's

  Im not --I enjoy the simplicity of the simple bike I bought, becaue a simple bike is what I wanted .
    The last thing I want Is a fuel injected common rail  car or bike with leds or anything.

    Points and condenser  please,,--Oh and light bulbs.


   Geeeez go by a Hyabusa.

[DavidMeermans]

Bookmarked for DavidMeermans update 

Btw, this voltage regulator you mention,,is it a thermal resistor ?

No, it is a true regulator.  I have attached the datasheet.  This one is designed to operate within 1/2 volt of the supply voltage.

Happy T-day,

Dave M

[r80rt]

.

[Ice]

yeah fit some LED's

  Im not --I enjoy the simplicity of the simple bike I bought, becaue a simple bike is what I wanted .
    The last thing I want Is a fuel injected common rail  car or bike with leds or anything.

    Points and condenser  please,,--Oh and light bulbs.


   Geeeez go by a Hyabusa.

 In my case the idea is light with low current draw= greater battery reserve in order to limp home when the ghost of Lucas in league with Murphy conspire to eat my voltage regulator/rectifier,,at night, in the rain, on the trail,, 20 miles from nowhere 

That and the Hyabusa would make a poor choice for of road riding.

[r80rt]

"Dan,my cowl lights are still glaring defiantly.Love the bluish look."
Glad you like them, I hope they will last you a very long time.

[Ice]

No, it is a true regulator.  I have attached the datasheet.  This one is designed to operate within 1/2 volt of the supply voltage.

Happy T-day,

Dave M

Cheers Mate,

Ice