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Author Topic: Relay box layouts  (Read 33844 times)

Offline frankenduck

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Relay box layouts
« on: May 31, 2011, 02:28:40 PM »
The load shedding or unloader relay turns off the headlight and a few other things when you are starting the bike in order to make more electrical power available to the starter motor.
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Offline rbm

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Re: Relay box layouts
« Reply #1 on: September 16, 2013, 07:56:57 PM »
Thanks, Tim.  Page reconstructed from cached images in Google:
Early K75/K100:

Front of the bike



ABS I Bikes:


ABS II Bikes:

The load shedding or unloader relay turns off the headlight and a few other things when you are starting the bike in order to make more electrical power available to the starter motor.
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Offline The Mighty Gryphon

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Re: Relay box layouts
« Reply #2 on: April 03, 2017, 01:19:35 PM »
What are the functions of the relays in the box of a 1994 K75RT?  What do the blue relays do?

The inside of my box doesn't match anything I can find on the interweb. 
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  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline Laitch

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Re: Relay box layouts
« Reply #3 on: April 03, 2017, 01:42:46 PM »
Quote from: The Mighty Gryphon on April 03, 2017, 01:19:35 PM
What do the blue relays do?
If this were my conundrum, I'd use the MAX fiche photos and try to identify them by the number of their terminals, the orientation of their terminals and their positions in the box. Happily, it isn't mine—not now anyway.
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  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline The Mighty Gryphon

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Re: Relay box layouts
« Reply #4 on: April 03, 2017, 02:52:28 PM »
Been there Laitch.  No help. 
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  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline Martin

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Re: Relay box layouts
« Reply #5 on: April 03, 2017, 03:15:28 PM »

Possibly ABS, pull them and see what doesn't work.  :dunno
Regards Martin.
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Offline jakgieger

  • itinerant farmer
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Re: Relay box layouts
« Reply #6 on: April 03, 2017, 03:49:18 PM »
Is this a joke MG???? Left=ABS   Right=fuel pump  This is the same setup on my 89.
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  • Kansas USA
  • 1989 K100rs se
"What we've got here is failure, to communicate.  Some men, you just cain't reach.  So you get what we had here last week.  Which is the way he wants it...Well, he gets it.  I don't like it any more than you men do."

Offline The Mighty Gryphon

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Re: Relay box layouts
« Reply #7 on: April 03, 2017, 04:15:31 PM »
Not the fuel pump.  I pulled it and it still ran.  Fuel pump appears to be the black one in front of it. 

The two blue relays are for the ABS as far as I can tell by process of elimination.  I would just like to confirm it.  The schematic shows two.  One should be the main and the other is for the cluster light.  According to the fault I'm reading for the ABS system, one of them has a problem.  I'm guessing it is the big one, but when I test it it tests good. 

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  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline jakgieger

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Re: Relay box layouts
« Reply #8 on: April 03, 2017, 05:58:15 PM »
I would get fixated on color...or position :bmwsmile .  Start by confirming operation.  Perhaps you have a mix of ABS1 and 2 diagram above, ie., one abs relay, but a block of four for load shed, horn, fuel, and fan???
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  • Kansas USA
  • 1989 K100rs se
"What we've got here is failure, to communicate.  Some men, you just cain't reach.  So you get what we had here last week.  Which is the way he wants it...Well, he gets it.  I don't like it any more than you men do."

Offline Filmcamera

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Re: Relay box layouts
« Reply #9 on: April 03, 2017, 06:04:50 PM »
In my box all blue relays are ABS
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  • 1991 K100RS 16v ABS1, 2022 Triumph Tiger 900 Rally Pro
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Offline Grim

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Re: Relay box layouts
« Reply #10 on: April 09, 2017, 09:31:50 AM »
^Yep blue is ABS. 

When I was forced to delete my ABS pulling both blues got rid of the flashing ABS lights.
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1995 Morea Green K1100LT
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