Headlight not working after installing SHINDENGEN MOSFET FH012AA REGULATOR/RECTIFIER - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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post #1 of 22 (permalink) Old 06-02-2010, 03:06 PM Thread Starter
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Headlight not working after installing SHINDENGEN MOSFET FH012AA REGULATOR/RECTIFIER

Hi all,

I have been a long time reader, but this is my first post. Thanks to all of you for sharing your knowledge.

I recently installed a SHINDENGEN MOSFET FH012AA REGULATOR/RECTIFIER by running the 3 yellow stator leads directly to the r/r and then outputting directly to the battery terminals.

I bought the r/r from the roadstercycle website and followed the directions in hooking it up.

The good news is the charging system seems to be working well. The bad news is headlight does not work now (all other lights work ok tho).

What do I need to do to get the headlight working properly again?

Krup327
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post #2 of 22 (permalink) Old 06-02-2010, 03:12 PM
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headlight is controlled by a relay which is connected to one of the legs of the stator. you may need to rewire the headlight to get direct power (the blue lead in the steering head i believe)

slim

does this sound right?
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post #3 of 22 (permalink) Old 06-02-2010, 03:27 PM Thread Starter
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I was thinking I could just splice into one of the stator leads and run it back to the yellow wire going into the junction box. Would this harm anything?

Krup327
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post #4 of 22 (permalink) Old 06-02-2010, 06:12 PM
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I don't think you should plug a wire directly from the stator into anything other than the RR.

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post #5 of 22 (permalink) Old 06-02-2010, 07:32 PM
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X2 to skalding. The stator wire is outputting anywhere from 20 to 50 volts AC, if I remember correctly.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
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post #6 of 22 (permalink) Old 06-02-2010, 09:18 PM
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Have you checked the headlight fuse?

I had a problem with the headlight and it was internal of the HB. So I found the headlight wire going into the HB and ran it into the auxiliary lighting plug under the right side cover along with a toggle switch where it is constant power until I could get a new HB.

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post #7 of 22 (permalink) Old 06-02-2010, 09:58 PM
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i had the same problem when i installed mine so i wired it up like the factory with the stator lead to the jb then the r/r would not charge what i did was take the brown sense wire from the old r/r connector and solder it to the yellow wire from the small plug on the j/b. the headlight is on all the time now there is no longer a delay to turn on the headlight. hope this helps


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post #8 of 22 (permalink) Old 06-02-2010, 10:21 PM
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Quote:
Originally Posted by krup327 View Post
I was thinking I could just splice into one of the stator leads and run it back to the yellow wire going into the junction box. Would this harm anything?

Krup327
this is absolutely correct, there is a relay that is inside of the JB that is switched on by one leg of the stator ,when the engine is cranked over,the yellow wire on the JB is connected in the factory harness to one of the stator yellow wires,I am going to presume you ran the stator wires directly to the R/R bypassing the yellow wires in the harness,just do what vulcanjoe did ,or run a wire from either stator lead to the yellow wire on the JB if you want the headlight to come on automagically.you almost have this whipped.




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post #9 of 22 (permalink) Old 06-02-2010, 10:43 PM
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problem is if you run a lead from the stator for some reason the r/r will not reach over 12.7v as soon as i disconnected it i went right back to 14.5v


34k so far
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Keep the shiny side up
coastered
de-goat and baffles removed
jetted 42-150 2 shims
Earshaved with unifilters
inside of tank coated
spline lube
long Beach Blue Pearl Paint 4/07
Shindengen FH012AA r/r
TPE stator
Exide sc30lfa Battery 28ah 445cca
Saddlemen saddlebags
2001 HD fatboy solo seat
Custom taillight & rear turn signals
Fergy's coil relay mod
Fiamm El-Grande high/low tone horns
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post #10 of 22 (permalink) Old 06-02-2010, 11:18 PM
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Quote:
Originally Posted by vulcanjoe View Post
problem is if you run a lead from the stator for some reason the r/r will not reach over 12.7v as soon as i disconnected it i went right back to 14.5v
weird, did you leave it connected to the r/r and jump to the yellow wire on the JBor disconnect one and ?and hook it to the JB




If you see it on my bike I did it
VROC#30324
92 vn750(sold)
Current ride 05 1500 Classic FI
lovin' the new scoot



Quote:
"When all is said and done,usually more is said than done" UNK
Click on one x and drag to the other to read between them.

Psalm 40:1...
XI waited patiently for the Lord; and he turned unto me, and heard my cry. X
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