KZR's Bikes of the Month for 2024

kz/gpz1100b1 fried loom

  • SWest
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  • 10 22 2014
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18 Jun 2024 07:42 #900925 by SWest
Replied by SWest on topic kz/gpz1100b1 fried loom
It would help to see the marking on the R/R under the battery box. 

 

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18 Jun 2024 07:52 - 18 Jun 2024 08:52 #900927 by Wookie58
Replied by Wookie58 on topic kz/gpz1100b1 fried loom
You may well be right Steve, I was going by pics from another post of another 83 (pic used in my wiring instructions) it seems like it is Honda and Yamaha that use a white plug ??

EDIT: Just seen this to confuse things further (factory part for 81 on "J" "K" "M" and GPZ1100) 210661018   ???????????????  I guess ultimately the colour is irrelevant (this part supersedes the original that has a red plug)

Last edit: 18 Jun 2024 08:52 by Wookie58.
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  • 10 22 2014
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18 Jun 2024 08:55 #900928 by SWest
Replied by SWest on topic kz/gpz1100b1 fried loom
This is a 94. Need to verify in and out on each plug. The Y/R changes to red multiple times on this bike. While they switched to blade connectors they still have the mini connectors in some places. Those got HOT and I had to break them to get them apart. Going with bullet connectors on them. 
Weak points. 
Steve
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18 Jun 2024 08:58 #900929 by SWest
Replied by SWest on topic kz/gpz1100b1 fried loom

You may well be right Steve, I was going by pics from another post of another 83 (pic used in my wiring instructions) it seems like it is Honda and Yamaha that use a white plug ??

EDIT: Just seen this to confuse things further (factory part for 81 on "J" "K" "M" and GPZ1100) 210661018   ???????????????  I guess ultimately the colour is irrelevant (this part supersedes the original that has a red plug)

Looks like a moisture barrier too. 

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18 Jun 2024 09:01 #900930 by SWest
Replied by SWest on topic kz/gpz1100b1 fried loom

Hi
Just in the process of a rolling resto gpz1100b1 and yesterday I took it for its first spin in 10 years. I had been through brakes and engine and the only thing that concerned me was the wiring that had been quite butchered and many connections were corroded. I should have taken this a bit more serious but it ran fine.... for 40 miles then I got a massive short in the loom between the reg/rec and the battery. The red/white wire was fried to the point of being stripped as was to a lesser extent the ground black/yellow. Both had been tape joined in the loom and it looked suspicioulsy like they may have shorted but tough to be certain. But it also had a cheap looking reg/rec and all the wires exiting this had melted and the RR connector looked pretty cruddy so that could be getting hot but it was the battery wire that seems to have got hottest 

I have a few questions I would love some help on
  1. So trying to be certain whats caused it, has anyone experienced similar damage from a faulty reg/rec or can I be pretty certain it was a short in the wiring?
  2. There doesnt seem to be any fuse that protects this part of the circuit, theres a permanent battery feed to the RR, im wondering whether I should put one in?
  3. I saw some earlier posts on another model about reg/rec, OEM is stupid money and i gues old technology, what are the recomendations for a modern replacement reg/rec?
  4. And the biggest problem, anyone know where I can source a replacement main loom or get one cost effectively made? 

Any help appreciated
Adrian
London
 
CARNAGE 

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18 Jun 2024 09:13 #900931 by SWest
Replied by SWest on topic kz/gpz1100b1 fried loom
Looks like a slo blo fuse in the second fuse box. 

 

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18 Jun 2024 09:18 #900932 by Wookie58
Replied by Wookie58 on topic kz/gpz1100b1 fried loom

This is a 94. Need to verify in and out on each plug. The Y/R changes to red multiple times on this bike. While they switched to blade connectors they still have the mini connectors in some places. Those got HOT and I had to break them to get them apart. Going with bullet connectors on them. 
Weak points. 
Steve
"P" wiring is a whole new game 

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18 Jun 2024 10:46 #900937 by SWest
Replied by SWest on topic kz/gpz1100b1 fried loom
So is the EFI But the basics are there. Like to compare the two. 
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18 Jun 2024 13:35 - 18 Jun 2024 13:53 #900945 by ajh
Replied by ajh on topic kz/gpz1100b1 fried loom
Seems there are a lot of knock offs on these SH775 RRs, anyone know best place to purchase them in the UK? 

FYI at www.z-power.co.uk/regulatorrectifier-10001100  the OEM RR still has a red block
 

1981 GPZ1100b1, 1980 CB750Fa, 1981 RD350LC, 1980 DT175mx, 1982 GS550ez
Last edit: 18 Jun 2024 13:53 by ajh.
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18 Jun 2024 13:50 - 18 Jun 2024 13:54 #900946 by SWest
Last edit: 18 Jun 2024 13:54 by SWest.
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18 Jun 2024 13:59 #900947 by SWest
Replied by SWest on topic kz/gpz1100b1 fried loom
Free shipping in lower 48.
Now that you know what to look for find one in your area. 

 

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18 Jun 2024 14:03 #900948 by Wookie58
Replied by Wookie58 on topic kz/gpz1100b1 fried loom
I would also suggest pulling the generator and checking it hasn't taken the stator with it, wouldn't want to cook a new RR 

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