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Correct routing of the N indication wire from the tranny?

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Micha
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Correct routing of the N indication wire from the tranny?

Post by Micha »

Hi guys, Searched for pictures on the web but did not find any good info.
What's the best way to route this wire and where should it connect to the harness?
I mean there is lots of space so there are plennty ways to do this - but what was the original way or what is the best way?
Thanks.
Michael Steinmann
R51/3 1952
Engine Nr. 529466

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jwonder
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Re: Correct routing of the N indication wire from the tranny?

Post by jwonder »

Micha,

The neutral wire comes down and joins the ground wire in a small harness.
IMG_6022.jpg
The harness runs along the frame member behind the gearbox with two cad plated clips.
IMG_6021.jpg
It then bends up to wards the battery box and is joined by the two wires from the brake switch.
IMG_6024.jpg
It goes around the top of the Swingarm between the Swingarm and the frame and up to the junction box on the right side and behind the battery.
IMG_6025.jpg
I hope these pictures help!
James Wonder
Vice President, Vintage BMW Motorcycle Owners
2022 BMW Friend Of the Marque
Long Island, New York

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Micha
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Re: Correct routing of the N indication wire from the tranny?

Post by Micha »

Hey James :D
You're great!
Thanks a lot for your time!
Michael Steinmann
R51/3 1952
Engine Nr. 529466

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jwonder
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Re: Correct routing of the N indication wire from the tranny?

Post by jwonder »

Micha,

After I sent those I remembered that you had an R51/3 that was a few serial numbers away from mine and that you might have been talking about that one. I went down and took pictures of that one as well. I cannot vouch if this was the way the factory did it because the harness was changed at some point in its life to add a brake switch, but it looks like what BMW would have done.

Also, please don't judge me on the dirtiness of the motorcycle, it's my daily vintage rider and I have put more than 5k miles on it just this summer in rain and shine.

The wire runs out of the back-right of the transmission and goes towards the rear of the motorcycle. Mine has a ty-wrap on the frame behind the transmission.
IMG_6026.jpg
It then runs around the cross member and towards the brake switch.
IMG_6027.jpg
It then joins the harness from the brake switch and up into the main block.
IMG_6028.jpg
My motorcycle (and hence yours) did NOT come with a brake switch and was retrofitted with one, so this is not a factory harness.

I hope this helps....

James
James Wonder
Vice President, Vintage BMW Motorcycle Owners
2022 BMW Friend Of the Marque
Long Island, New York

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Micha
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Re: Correct routing of the N indication wire from the tranny?

Post by Micha »

Well that is awesome.
Very helpfull!
I am not an original fanatical, just wanted to know what best way will be.
Thank you again very much for your time and effort. That is very kind of you.
I appreciate it very much!
Michael Steinmann
R51/3 1952
Engine Nr. 529466

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