• Husqvarna Motorcycles Made In Sweden - About 1988 and older

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Led lights on 85 wr250?

im trying to do an led conversion as well.. what happens when you feed a 20w led light with voltage regulated 35w output? will it harm a light? thats what my main concern is...im planning on fitting an led solution to the oem round lense and a rectangle style as well...
 
As long as the voltage is within spec for the led that part is ok. An incandescent light doesn't care but many leds can't handle the ac voltage. You may need to put a rectifier after your regulator.

led.jpg
That being said some leds can handle the ac voltage, the light is just off during the 1/2 wave. The effect is a bulb that is only half as bright as it should be.
 
Motosportz said:
http://www.trailtech.net/ac-volatge-regulator

http://www.trailtech.net/7004-rr150
Click to expand...
Thar is a good choice for bulbs that like ac voltage, but I don't think it is a rectifier. Typically led bulbs don't like the negative 1/2 of the sine wave. A 1/2 wave rectifier cuts out the negative voltage and a full wave reverses the polarity to make it appear to be dc voltage. For led lighting you really want a full wave rectifier to give you the best performance.

rectified.jpg

I did a little looking and found some 4 pin reg/rec online for as little as $9.

4157QYN5HgL.jpg
I ordered one and will see how it works. Will update ASAP
 
I know Helmut Clasen uses LEDs front and rear on his Sachs bikes, he uses MZ-B/Powerdynamo ignitions which have a built in regulator, not sure if they have a rectifier or if he installs a rectifier.

558046_10201093901404045_1918178466_n_zpsa7bf7886.jpg
 
I ordered the reg/rec pictured. It seems to need a floating circuit. The motoplat is one lead and uses the engine/frame as the other lead. So I am doing some more research, some of these chinese scooters may use that type just got to figure out which. The SEM has 2 leads but does anyone know the internal wiring? Are they the ends of one winding or two separate windings to ground?
 
If the SEM has 2 yellow wires they are 12V 70W each.
For awhile you could hook them together and get 12V 140W when they were wound in phase, then they quit doing that you got the 12V 70W.
A single yellow wire SEM was 12V 110-140W.
Later George
 
Thanks George! So to test if I were to connect test leads to each yellow wire and I get 12v (or thereabouts) I should be able to connect to 4 wire reg/rec and get 12v dc out of that. If I get no voltage I assume they are cancelling each other out ie a separate circuit to ground. Hopefully i will have time this weekend to test.
 
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