I, too, just bought an old snotter.

Geoff.Campbell

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A common start to a thread hereabouts, it seems. Hello everybody, I'm new here, I've had a 1973 R75/5 for years, now I just picked up a 2001 1150GS that has had a sad, hard life for the last few years. It got abandoned in a friend's leaky, damp garage for some years, then when he moved house it was transferred to another friend who "stored" in out in the open in his farmyard for some years more.

Loads of stuff to deal with, mostly just hard work and time to bring it back up to scratch. Compression seems fine, so it's saveable. For the moment I've got it hanging around thinking about its life choices.

But, main question - it has the same wiring sheath problem these all have, to a really bad extent - not just the handlebar sub-looms, but most of the main loom has fallen apart. I'd be OK with re-wrapping, but I think that the sheath failing has allowed a lot of water into the loom, and corroded a bunch of stuff. The diagnostic port, for example, isn't getting 12v, even though 12v is leaving the fuse box, and the only thing between the two is a sealed junction inside the main loom.

So, I'm sort of resigned to pulling the whole loom off and going through it carefully to replace what I find. But before I start, are there any specialists making new looms for these bikes? I can find second-hand ones, but that might just be buying more problems to fix, so that's very much a fall-back solution if the current loom proves to be un-saveable.

(I was going to insert a mildly amusing photo of the poor old sod hanging from a two-post lift in the shed, but I can't see how to upload a local photo, so you'll just have to imagine that.)
 
Hello and welcome, I will certainly be looking at this project from afar and wish you luck.....

You can upload photos with the attach files button below...(if you've paid your subscription fee)
 
Hello and welcome, I will certainly be looking at this project from afar and wish you luck.....

You can upload photos with the attach files button below...(if you've paid your subscription fee)
Ah, didn't even know that was an option. Quite happy to support the cause.

Here's my current working arrangements. Much better than rolling around on the floor, especially as the main stand was seized solid when I got the bike.IMG_20250811_125332203_HDR.jpg
 
Last edited by a moderator:
Hello and welcome, I will certainly be looking at this project from afar and wish you luck.....

You can upload photos with the attach files button below...(if you've paid your subscription fee)
But please please 🙏🏼 be sure to click on “Insert” labelled button in each photo and select “Full Image” once you chose your photographs to attach. Otherwise all we see is a poor quality tiny little image. Yes we can click on it, but that’s not fun from my point of view, as it opens a separate window.

Thank you.
 
But please please 🙏🏼 be sure to click on “Insert” labelled button in each photo and select “Full Image” once you chose your photographs to attach. Otherwise all we see is a poor quality tiny little image. Yes we can click on it, but that’s not fun from my point of view, as it opens a separate window.

Thank you.
Noted, thanks.
 
A common start to a thread hereabouts, it seems. Hello everybody, I'm new here, I've had a 1973 R75/5 for years, now I just picked up a 2001 1150GS that has had a sad, hard life for the last few years. It got abandoned in a friend's leaky, damp garage for some years, then when he moved house it was transferred to another friend who "stored" in out in the open in his farmyard for some years more.

Loads of stuff to deal with, mostly just hard work and time to bring it back up to scratch. Compression seems fine, so it's saveable. For the moment I've got it hanging around thinking about its life choices.

But, main question - it has the same wiring sheath problem these all have, to a really bad extent - not just the handlebar sub-looms, but most of the main loom has fallen apart. I'd be OK with re-wrapping, but I think that the sheath failing has allowed a lot of water into the loom, and corroded a bunch of stuff. The diagnostic port, for example, isn't getting 12v, even though 12v is leaving the fuse box, and the only thing between the two is a sealed junction inside the main loom.

So, I'm sort of resigned to pulling the whole loom off and going through it carefully to replace what I find. But before I start, are there any specialists making new looms for these bikes? I can find second-hand ones, but that might just be buying more problems to fix, so that's very much a fall-back solution if the current loom proves to be un-saveable.

(I was going to insert a mildly amusing photo of the poor old sod hanging from a two-post lift in the shed, but I can't see how to upload a local photo, so you'll just have to imagine that.)
New looms will be available at a cost , however, any secondhand will be just as bad regarding the outer sheathing falling to bits and crumbling although most will not have been living outside , the low mileage one I got a few years back only had 22,000 miles on the clock but I had to strip and rewrap the entire loom from front to back.

Edit new looms shown on line at @ £1000 and specialists are selling used for £250 ish
 
New looms will be available at a cost , however, any secondhand will be just as bad regarding the outer sheathing falling to bits and crumbling although most will not have been living outside , the low mileage one I got a few years back only had 22,000 miles on the clock but I had to strip and rewrap the entire loom from front to back
I need to find out what that cost is before I make a decision, do you know of any suppliers I can talk too? I've not found anything on a quick web search.

There's a complete loom removal and rewrap in my future whatever happens, so we'll see what the decision is. Motorworks have second-hand looms for not a lot over £200, which is quite reasonable if they are in full working order apart from the sheathing, so that's my fallback option currently if I can't sort out the existing one. If I could get a new loom for, I dunno, £5-600, the extra expense is probably worth it in saved time, but I suspect that's low-balling the likely cost by some margin :)

Having said that, a new loom for my R75/5 was about £68, so you never know...
 
I need to find out what that cost is before I make a decision, do you know of any suppliers I can talk too? I've not found anything on a quick web search.

There's a complete loom removal and rewrap in my future whatever happens, so we'll see what the decision is. Motorworks have second-hand looms for not a lot over £200, which is quite reasonable if they are in full working order apart from the sheathing, so that's my fallback option currently if I can't sort out the existing one. If I could get a new loom for, I dunno, £5-600, the extra expense is probably worth it in saved time, but I suspect that's low-balling the likely cost by some margin :)

Having said that, a new loom for my R75/5 was about £68, so you never know...
I just went onto the oem BMW site and got the part nos for the loom and a few showed up online
 
Check the fuel pump is working, and look inside the petrol tank and and at the fuel pump flange .. most of the bikes I’ve worked on that have stood for a long time are in a terrible condition inside the tanks.

View attachment 434603View attachment 434604View attachment 434605
That looks nasty!

Good call, thanks. I already have a new pump and a set of the later R1200 injectors and adapters from Motorworks, 'cos I was pretty sure they wouldn't be nice. They're surprisingly reasonably priced.
 
I just went onto the oem BMW site and got the part nos for the loom and a few showed up online
Ah. Turns out I had the parts list open at that exact page from a few weeks back, before I got distracted, I was trying to decide between three different looms.

Looks like 1,500-2,000 Euros, which is a bit spicy but at least there are still some around.
 
steve hallam , electrics , croydon , 07870 280288
present a bike with all the bits in place , WAIT , pay money .

does a lovely job , will be way cheaper than a new loom .

yes i know he is nowhere near you .
he has been a bit ill lately so he will have a bit of delay.

always remember , you get what you pay for.
 
It's usually just the rubber covering on the loom that falls apart.
Just neatly wrap it with self adhesive loom tape, mine came up well with no issues & looks a professional result too.
 
steve hallam , electrics , croydon , 07870 280288
present a bike with all the bits in place , WAIT , pay money .

does a lovely job , will be way cheaper than a new loom .

yes i know he is nowhere near you .
he has been a bit ill lately so he will have a bit of delay.

always remember , you get what you pay for.
Handy, thanks. I'll give him a call when I get restarted.
 


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