Author Topic: Pictures of a 75 850T Electrics  (Read 326 times)

Offline BIF

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Pictures of a 75 850T Electrics
« on: June 19, 2025, 01:47:23 PM »
OK I know I am looking for a unicorn here, but I thought I would give it a shot. I am  working with Greg Bender (Who is great to  work with) in replacing my complete wiring harness. But in the 50 years that my bike has existed many of the electrical components have migrated about. Does anyone have pictures of an unmolested 850T wiring, Particularly under the fuel tank in regards to coils, relays, and rectifiers, and in the battery area.
Thanks

Offline guzzisteve

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Re: Pictures of a 75 850T Electrics
« Reply #1 on: June 19, 2025, 02:55:54 PM »
Best to search, maybe in bike builds. I have done many a T or T3. I had a big box of taken looms off looms. Early G5's are similar.
I always went by the wiring diagram, know colors in IT by heart. Look in the service manual pics, it'll show you where stock stuff is.
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Offline BIF

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Re: Pictures of a 75 850T Electrics
« Reply #2 on: June 19, 2025, 04:54:46 PM »
Let me be a little more clear. I am not interested in a wiring diagram. I am interested in where the components were originally attached on the bike how. What type spacers hardware, orientation, how far down on the coils did the clamps mount. Yes, I am looking for details, and I know this is a bit of a difficult one. I already have wiring diagrams, owners manual, parts manual and service manual, and while they help they do not give you a clear picture.

thanks


Online Antietam Classic Cycle

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Re: Pictures of a 75 850T Electrics
« Reply #3 on: June 19, 2025, 05:22:07 PM »
Let me be a little more clear. I am not interested in a wiring diagram. I am interested in where the components were originally attached on the bike how. What type spacers hardware, orientation, how far down on the coils did the clamps mount. Yes, I am looking for details, and I know this is a bit of a difficult one. I already have wiring diagrams, owners manual, parts manual and service manual, and while they help they do not give you a clear picture.

thanks

Much of that part of the 850-T was the same as a V7 Sport. I created this photo album for a customer so that he could follow along on his restoration. Maybe some of the photos will help.

https://www.flickr.com/photos/98421140@N05/albums/72157668821736807/with/46088366312
Charlie

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Re: Pictures of a 75 850T Electrics
« Reply #4 on: June 19, 2025, 08:01:16 PM »
Let me be a little more clear. I am not interested in a wiring diagram. I am interested in where the components were originally attached on the bike how. What type spacers hardware, orientation, how far down on the coils did the clamps mount. Yes, I am looking for details, and I know this is a bit of a difficult one. I already have wiring diagrams, owners manual, parts manual and service manual, and while they help they do not give you a clear picture.

thanks

I have the EDIT: March July 1974 issue of Motociclismo, which contains a very detailed test and examination of the brand new 850 T. They present a lot of pictures with the tank off and even from the bottom up, but they are in black-and-white. I am busy making dinner now, so you'll have to wait a bit for me to photograph some of the photos in the magazine. In the meantime, you might take a look at a very similar test of the 850 T3, from the July 1975 issue of the same magazine. I translated that one into English, and it is posted on Greg's site, here:
https://www.thisoldtractor.com/moto_guzzi_more_topics_article_-_motociclismo_-1975-07-_moto_guzzi_850_with_the_new_integral_braking_system.html

Glancing through the earlier article, I see there are more useful shots there. In 1975 they decided to concentrate on the new braking system.

Moto
« Last Edit: June 20, 2025, 12:31:56 PM by moto »
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Online Antietam Classic Cycle

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Re: Pictures of a 75 850T Electrics
« Reply #5 on: June 19, 2025, 08:28:04 PM »
The frame of an early 850-T and the V7 Sport are identical, and as such the coils, voltage regulator and diode board all mount in the same locations, up under the tank. On the T3, the voltage regulator is in the same location, but mounts differently. The diode board is under the right sidecover, behind the master cylinder. Coils are in a different location and mount differently as well.
Charlie

Offline BIF

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Re: Pictures of a 75 850T Electrics
« Reply #6 on: June 19, 2025, 10:09:26 PM »
Much of that part of the 850-T was the same as a V7 Sport. I created this photo album for a customer so that he could follow along on his restoration. Maybe some of the photos will help.

https://www.flickr.com/photos/98421140@N05/albums/72157668821736807/with/46088366312

These are great and what I was looking for.
Thank you

Offline BIF

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Re: Pictures of a 75 850T Electrics
« Reply #7 on: June 19, 2025, 10:12:20 PM »
I have the July 1974 issue of Motociclismo, which contains a very detailed test and examination of the brand new 850 T. They present a lot of pictures with the tank off and even from the bottom up, but they are in black-and-white. I am busy making dinner now, so you'll have to wait a bit for me to photograph some of the photos in the magazine. In the meantime, you might take a look at a very similar test of the 850 T3, from the July 1975 issue of the same magazine. I translated that one into English, and it is posted on Greg's site, here:
https://www.thisoldtractor.com/moto_guzzi_more_topics_article_-_motociclismo_-1975-07-_moto_guzzi_850_with_the_new_integral_braking_system.html

Glancing through the earlier article, I see there are more useful shots there. In 1975 they decided to concentrate on the new braking system.


Moto


I would love to see the pics, of the 850 T - the T3 apparently and it shows in the photos is different. Minor differences but different.
« Last Edit: June 19, 2025, 11:22:41 PM by BIF »

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Re: Pictures of a 75 850T Electrics
« Reply #8 on: June 20, 2025, 08:27:09 AM »
These are great and what I was looking for.
Thank you

You're welcome.
Charlie

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Re: Pictures of a 75 850T Electrics
« Reply #9 on: June 20, 2025, 11:25:23 AM »
I took nine photos of the magazine pictures last night, but the system choked when I tried to upload them, even though I had reduced the resolution. I'll try again, one by one. I figure I will just upload the first one in this message and then modify it successively to include the other photos as fast as this can be done. So if they're not here at first, you should check back.

Sadly, I have changed my mind. Even attempting to upload a single photo was unsuccessful. My son, a great computer expert, says that he never spends more than five minutes on a problem before giving up. I give up. Good luck. Moto

P.S. if you finally restore your bike to its original condition, at least you'll have the pleasure of owning something that depends in no way on computers and electronics. So there is that satisfaction.

P.P.S. it is the March, not July, 1974 issue of the magazine that has a review of the 850 T. It will come up occasionally on eBay, sold by Italians typically. Good luck.
« Last Edit: June 20, 2025, 12:34:24 PM by moto »
850 T-3
Griso 1100 corretto
2023 Royal Enfield Classic 350
Italjet Buccaneer 250 (ex-SSR) -- now sold
credit for 2500+ postings lost in the database meltdown of Feb 9, 2020

Online moto

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Re: Pictures of a 75 850T Electrics
« Reply #10 on: June 20, 2025, 08:06:46 PM »
I found the discussion of this uploading problem and will try again now.









I think those are the most promising for you and I will quit while I am ahead.
« Last Edit: June 20, 2025, 08:12:52 PM by moto »
850 T-3
Griso 1100 corretto
2023 Royal Enfield Classic 350
Italjet Buccaneer 250 (ex-SSR) -- now sold
credit for 2500+ postings lost in the database meltdown of Feb 9, 2020

Offline BIF

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Re: Pictures of a 75 850T Electrics
« Reply #11 on: June 20, 2025, 10:12:58 PM »
I found the discussion of this uploading problem and will try again now.







[/ur


I think those are the most promising for you and I will quit while I am ahead.

Thanks for taking the time to download the photos. The one shooting down on the coils is excellent. I really appreciate the effort, and now I will print them and break out the magnifying glass to study them.

Thanks again

 


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