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  #1  
Old 11th October 2017, 11:13 PM
tommyboy123 tommyboy123 is offline
Wobbling Fledgling
 
Biker.ie Member No. 34935
4 posts since Jul 2015
Motorbike: 85 gsx750 ef
Default Regulator wiring worries

Story Lads and Lassies, just a quick question.
The Regulator Rectifier failed on my bike (85 Gsx 750ef) recently. I got a friend of mine to pick up a replacement from city spares, 50 euros happy days. The replacement regulator is a fair bit different in size and shape to the old one, but the bolt spacing is similar and it seems to fit. I crimp new spade connectors to the positive and negative wires, plug these and the and the other three (from the alternator) which already had connectors attached into the block connector, cross my fingers, fire it up. Success! its showing 14.5 Volts across the rev range from 1100rpm to 7000 as opposed to the 16.5 it had being showing before.

I have to drive the bike from Laois to Dublin in the next couple of days and i'm thinking to myself.
when I've tested bikes and cars before the reading from the battery would show 13.5 to say 14.5 depending how high the revs were. However on the bike now it was 14.5 rock steady all the time. I even got the girlfriend to rev it up good and proper so I could hold the meter on and get a good reading.

I guess what I'm asking in as long winded way is. Is there a right or wrong position to connect the three wires from the alternator, they weren't numbered on the replacement regulator and the broken one had a nice idiot proof connector block.

Any feedback would be appreciated.
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  #2  
Old 11th October 2017, 11:35 PM
bsanrr's Avatar
bsanrr bsanrr is offline
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Biker.ie Member No. 7254 from Cork
104 posts since Nov 2007
Motorbike: ZZR1100 D7
Default Re: Regulator wiring worries

Apparently not. Had a GS1100 way back and it suffered the same r/r fate. Relied on info from gsresources at the time... Stuff like http://gsarchive.bwringer.com/storag...eplacement.pdf

No guarantee expressed, implied or given...
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  #3  
Old 11th October 2017, 11:36 PM
Gixxer's Avatar
Gixxer Gixxer is online now
Resident gynaecologist
 
Biker.ie Member No. 19392
11,542 posts since Nov 2009
Motorbike: NSU Quickly
Modifications: Lobotomy
Default Re: Regulator wiring worries

There's no wrong way to connect the three phases from the stator.
Did you check the voltage at the three phases?
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  #4  
Old 11th October 2017, 11:44 PM
tommyboy123 tommyboy123 is offline
Wobbling Fledgling
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 34935
4 posts since Jul 2015
Motorbike: 85 gsx750 ef
Default Re: Regulator wiring worries

Thanks Bsanrr. Nice link! Looks very similar to what I was up to today.

Hi Gixxer No i haven't. Do you mean to check the Voltage when the bike is running?
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  #5  
Old 11th October 2017, 11:53 PM
Gixxer's Avatar
Gixxer Gixxer is online now
Resident gynaecologist
 
Biker.ie Member No. 19392
11,542 posts since Nov 2009
Motorbike: NSU Quickly
Modifications: Lobotomy
Default Re: Regulator wiring worries

Originally Posted by tommyboy123
Thanks Bsanrr. Nice link! Looks very similar to what I was up to today.

Hi Gixxer No i haven't. Do you mean to check the Voltage when the bike is running?
It's always best to do it that way. Then you won't get a reading of zero volts
And remember it's AC, not DC.
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  #6  
Old 11th October 2017, 11:54 PM
gsxr100k7's Avatar
gsxr100k7 gsxr100k7 is offline
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Biker.ie Member No. 20797 from over there
3,309 posts since Mar 2010
Motorbike: An Austrian & a Spaniard
Modifications: runs on plutonium
Default Re: Regulator wiring worries

Is the replacement you got a newer mosfet type?
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  #7  
Old 12th October 2017, 12:03 AM
tommyboy123 tommyboy123 is offline
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Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 34935
4 posts since Jul 2015
Motorbike: 85 gsx750 ef
Default Re: Regulator wiring worries

Hi K7, no its an older regulator from a Fazer 600 I believe. I tried to post pics but was unable to. it looks very similar to the link that Bsanrr posted. I'm just a little worried as it seemed to give such a steady output.
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  #8  
Old 12th October 2017, 12:05 AM
tommyboy123 tommyboy123 is offline
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Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 34935
4 posts since Jul 2015
Motorbike: 85 gsx750 ef
Default Re: Regulator wiring worries

C:\Users\galaxy\Desktop\20171010_132809.jpg
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  #9  
Old 12th October 2017, 12:08 AM
Gixxer's Avatar
Gixxer Gixxer is online now
Resident gynaecologist
 
Biker.ie Member No. 19392
11,542 posts since Nov 2009
Motorbike: NSU Quickly
Modifications: Lobotomy
Default Re: Regulator wiring worries

Originally Posted by tommyboy123
C:\Users\galaxy\Desktop\20171010_132809.jpg
I hope you're better with a multimeter than you are with the internet
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  #10  
Old 12th October 2017, 12:10 AM
gsxr100k7's Avatar
gsxr100k7 gsxr100k7 is offline
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Biker.ie Member No. 20797 from over there
3,309 posts since Mar 2010
Motorbike: An Austrian & a Spaniard
Modifications: runs on plutonium
Default Re: Regulator wiring worries

Originally Posted by tommyboy123
Hi K7, no its an older regulator from a Fazer 600 I believe. I tried to post pics but was unable to. it looks very similar to the link that Bsanrr posted. I'm just a little worried as it seemed to give such a steady output.
Does the part number start with an 'F' or 'FH'?
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  #11  
Old 13th October 2017, 02:58 AM
faz1 faz1 is offline
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Biker.ie Member No. 15104 from Meath
996 posts since Mar 2009
Motorbike: fz1, 34-26-35
Modifications: none
Default Re: Regulator wiring worries




don't sk me what he's at...
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