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July 5th, 2012, 02:35 PM   #1
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Voltage Regulator Wiring Question

After selling my 96 FE600e a few years ago, I have always wanted a Husaberg since. I recently picked up at 2005 FS450c (supermoto) that actually has a title and plates, but never got wired for lights. It has a starter and a battery, but does not charge the battery when running. I purchased all the neccesary items to wire up the lights (tail, tailight, turn signals and switch, head light, etc.) but am having trouble finding information on voltage regulation. My stator does have four wires coming out of it; two going to the ignition unit, and two that go in an unused connector (yellow and white)

Ideally, I would like to keep the battery and starter removed for weight, simplicty, etc. and therefore do not need a rectifier for charging the battery. I was a car/bike mechanic for many years but never dealt with A/C voltage other than checking A/C voltage on the usual three wire stators that almost every Japanese street bike has (and maybe some crankshaft position sensors). So I have some questions....

1. Why does the Husaberg stator only have two A/C voltage wires comign out of it? I was always under the impression that you needed three wires (to get three phases) to make cleaner D/C voltage without large gaps.

2. Do any of the Husabergs come with simply a voltage regulator, NOT a rectifier/regulator? If so, who sells them and how do you wire it up? All the wiring diagrams in the repair manual show rectifier/regulator combos only.

3. How many different stators/magnet combinations were there in 2005? I'm pretty sure I have the one designed for lighting and charging the battery, because the wiring diagrams show the four wire stator on the bikes with lights and the two wire on the bikes without lights. Before wiring up the lights, I checked A/C voltage with my multimeter on one of two unused the wires (yellow wire I think, wiring diagram says this wire powers the lights) and it seemed too high based off what I know about converting A/C RMS voltage to D/C (divide by square root of 2, right?). IIRC, it was around 20V near redline. I hooked up the tail light just to see, and like curiousity killed the cat, the bulb blew when I revved it up past a certain point.

4. Can turn signals run off the A/C voltage? I have heard the flasher won't work with A/C voltage (makes sense to me), but perhaps a capacitor can be installed to change this...

Thanks In Advance.
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July 5th, 2012, 10:20 PM   #2
kli
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Re: Voltage Regulator Wiring Question

1. some older Husabergs also had two wire (on some SEM were two yellow connected together), difference is between one and three phase, therem it's no difference in oration, three phase it's more efficien, you can get higher DC voltages, than you have lower current and cheaper rectifier conponents (when talking generaly about rectifiers).

2. Simply voltage regulator by it self can't stand up. Regulator make DC voltage stable (otherwise it will fluctuate like you change rpm of bike, higher rpm higher AC voltage from stator), so before regulator you need to have rectifier.
Stator=>AC voltage - Rectifier=>DC voltage - Regulator=>Stable DC voltage

4. You could buy relay for AC voltage, and also normal light bulb will work with AC voltage, but don't belive that you will found AC relay regulation (blinking time).

Hope that help you with this electrical part, about stators in 2005 don't know.

regards
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July 17th, 2012, 12:42 PM   #3
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Re: Voltage Regulator Wiring Question

I just talked to Rick at Boss Husaberg of Portland, OR and he says you can wire in a AC Regulator by using just the yellow wires coming out of the stator and then wiring them to your lights. Has anyone done this?

On previous bikes I have owned (99 Honda VFR800, which are notorious for charging problems), I have upgraded the rectifier/regulator to a MOSFET unit off of a newer sport bike because I have read they are more efficient, run cooler, last longer, etc. I was wondering if there was a way I could do this for the Husaberg, also. They are really cheap on eBay (much cheaper than a Husaberg R/R) and would probably last longer...
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August 3rd, 2012, 07:50 AM   #4
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Re: Voltage Regulator Wiring Question

Anyone know about this?
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