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R90/6 electrical question
R90/6 electrical question
1960 R69; 1975 Norton MKIII; 1976 R90/6; 1992 K75S; 2000 Hayabusa
Big Bar, Northern California
- srankin
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Re: R90/6 electrical question
Re: R90/6 electrical question
1960 R69; 1975 Norton MKIII; 1976 R90/6; 1992 K75S; 2000 Hayabusa
Big Bar, Northern California
- schrader7032
- Posts: 9016
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
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Re: R90/6 electrical question
The BMW diagrams have three models listed - 271, 277, 293 for US models for the R90/6. I've never known what that meant. For the R100/7 US models, it lists 333, 314, 393. If I go to RealOEM and type in my VIN, at the bottom of the page it gives the build date for my bike and also that model type 333. So, I guess that helps me figure out which of the three diagrams I should consider for my /7. And there's different type models for European models. FWIW.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
Re: R90/6 electrical question
1960 R69; 1975 Norton MKIII; 1976 R90/6; 1992 K75S; 2000 Hayabusa
Big Bar, Northern California
- srankin
- Posts: 1054
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 14 times
Re: R90/6 electrical question
So did you remove the wire or was it just found hanging in the system? Anyway, it is raining today and I am not riding so I will see if I can find something in my diagrams to answer the question.
LOL, this is not the first time I have come across a wire that is not in the diagrams I have, BMW does add wires from time to time in mid year or US versus overseas model changes.
I do believe it may just be for the horn as you said but I want to make sure. St.
Re: R90/6 electrical question
Didn’t want this to slip out but….I’m putting a /5 headlight on a /6. I’ve installed the contact plate, the flasher and the light relay in the /5 headlight shell. Everything is almost all hooked up except for the black wire that does to “50”. Thanks
1960 R69; 1975 Norton MKIII; 1976 R90/6; 1992 K75S; 2000 Hayabusa
Big Bar, Northern California
- srankin
- Posts: 1054
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 14 times
Re: R90/6 electrical question
I don't have a wiring diagram that answers your question, so I guess I am out of the loop now. Good luck. St.
Re: R90/6 electrical question
https://bmwmotorcycletech.info/wires&codes.htm
- srankin
- Posts: 1054
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
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Re: R90/6 electrical question
Also,SW black ...usually, not always, the starter, and some functions to the ignition coil, starter, tachometer.
Did you have a mechanical tachometer to start with, I believe this is so? That would rule out a tachometer lead. So, that leaves coil and starter.
Is this wire in the headlight shell or outside on the main harness? If it is in the shell, that makes it a whole new ball game, if it is outside, then perhaps it is a coil wire? St.