kz/gpz1100b1 fried loom

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? 

ajh wrote:

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
 

ajh wrote:

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? I would agree with F64 - that level of damage would suggest a "short" and the RR will be toast anyway now
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? This is the output from the RR not a feed in, and yes you can install a fuse (I will be using a 30a midi fuse on my build) some later bikes have this from factory (83 750 etc)
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? Agree Nessism will advise on this
4. And the biggest problem, anyone know where I can source a replacement main loom or get one cost effectively made? All you can do is start searching, having a custom loom build will be expensive if you can find someone to do it (this will be challenging being an EFI bike as adapting from another model would be challenging)

Any help appreciated
Adrian
London
  

Wookie58 wrote:

ajh wrote:

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? I would agree with F64 - that level of damage would suggest a "short" and the RR will be toast anyway now
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? This is the output from the RR not a feed in, and yes you can install a fuse (I will be using a 30a midi fuse on my build) some later bikes have this from factory (83 750 etc)
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? Agree Nessism will advise on this
4. And the biggest problem, anyone know where I can source a replacement main loom or get one cost effectively made? All you can do is start searching, having a custom loom build will be expensive if you can find someone to do it (this will be challenging being an EFI bike as adapting from another model would be challenging)

Any help appreciated
Adrian
London
  

ajh wrote:

1.  
2. 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?
3. 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
 

Scirocco wrote:

ajh wrote:

1.  
2. 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?
3. 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

 

Give me some days, i know i have several spare GPZ 1100 wiring looms and R/R´s in my shed.

ajh wrote:

thanks swest, I think that was because it had an aftermarket RR with a white connector