• 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 The previous version was outdated and no longer supported.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!

Electrical 430 CR

L

Larsa

Husqvarna
A Class
This is what my electrical system looked like when pulled of the bike, Fully home-made with not a single wire beeing the same color all the way (all are spliced at some location), and of course they ran out of different colors at some point so many are all black :) The system consists of horn, front and rear brake switches, turn signals, high/low beam front lamp etc, so pretty much a 'full' street legal system.

..And oh by the way, not a single fuse anywhere to be found !

I have not been able yet to write a complete diagram of the existing system, but was wondering about two components on it. In direct serial connection to a rectifier there is a big shiny metal thing that I beleive is a voltage regulator of some kind. I was hoping this is an orginial Husky part for the WR:s, but not sure ?

Also, I have Two quite big yellow cables out of the engine which I suppose are two power cables for the lights. Anyone able to confirm this? I hope the coil that drives them have enough performance to power all the lights and also charge the battery.

El_small.jpgEngine_small.jpg
 
In one of the Husky Club newletter in the Vintage Tech page is a page with the European Husqvarna wiring harnesses. Much more extensive than the US export models
 
jimspac said:
In one of the Husky Club newletter in the Vintage Tech page is a page with the European Husqvarna wiring harnesses. Much more extensive than the US export models
Click to expand...
Yep, I have that diagram, it is a good one, but missing some of the parts I have unfortunately.

Just to clarify, This bike is a 1981 CR that someone made road legal in the very early eighties, and when doing that had to build this electrical system on to it. Since I am now making it pristine again I will have to redo all of the electrics. It is going to be NICE to put some blue smoke onto all of the 400 thumpers that go around where I live. It will complement my rd350 which I have also for the same purpose. To me, nothing can compare to two strokes.

I think I will take my RD350 electrical system diagram and remake a system for this bike (ignoring the things I dont need for it)

Thanks!
Lars
 
shema elect 1981.jpg

excuse is in french !
(y am froggy ) !;)

SEM/AMAL ave you in
yor motocycle ?
yellow= ligths x 2 =70 watts x 2 !
orange= stop motor
grenn +black+red = higt electric spark !
 
Visiteur1948,

YEP, thats the system I have! I will probably use one of the yellow ones to constantly charge the battery and drive the horn and turn signals and devote the other yellow cable (not sure if they are on the same coil or different coils) for the headlight.

P.S, the orange cable out of the ignition coil, that is for killing the spark through grounding, correct ?

Thanks
Lars
 
Larsa said:
Visiteur1948,

YEP, thats the system I have! I will probably use one of the yellow ones to constantly charge the battery and drive the horn and turn signals and devote the other yellow cable (not sure if they are on the same coil or different coils) for the headlight.

P.S, the orange cable out of the ignition coil, that is for killing the spark through grounding, correct ?

Thanks
Lars
Click to expand...

yes ! ORANGE cable
SEM /AMAL 1981 stop engine !
:)

sem bran 02.JPG
 
Guys,
I made a stab at creating a scheme for the bike myself. I routed the regulator to both yellow cables in conjunction, my other option will be to have separate lines with a more complex on/off switch for the lights to enable one power cable to drive the 'electronics' + battery charge and the other coil to drive the lights only.

Please understand that this is just my idea of how an electrical system could look like for my CR, shared on this forum with the purpose that someone more knowledgable then me would like to give feedback on it. It is not verified to be working or capable of doing the things I want it to do.
 

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If you start with an XT500 wiring diagram or harness you will have everything you need. The XT is only 2 wires from ignition and has nice switches
 
Guys !

I just must ask this question, even though it might be stupid. But are there SEM ignitions that produce 6V light power?

I am asking because when I looked at the old lamps on my bike they were 6 volts, and I built a completely new system ASSUMING the ouput power was 12 Volts.

Can someone please remove my headache and make my day by confirming that my SEM produce 12 Volts ? (see pic of my SEM stator)

If it is not I shall promise to delete beer/snacks and everything else that make life so good just to remind myself not to make stupid assumptions!
(only for a limited time though....)

Ther stator has 2 yellow power-wires and 3 to the SEM coil.

Thanks guys,
Lars
 

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