Hi Everyone, I just bought a '76 r75.. Pretty good condition but a few problems I need advise with. Firs , when the headlight switch I'd in the head and tail lights don't work. The high beam flasher works and the tail light parking light works when switched on.. Any ideas ..?
Also the bike idles really high after it warms up.. Not sure where to start on that.,!
Any help is really appreciated..
Thanks,Bill
'76 r 75..
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Re: '76 r 75..
As a general principle, use Google and you can find answers to just about everything you could want.
Try "bmw motorcycle high idle" and see what happens.
Try "bmw motorcycle high idle" and see what happens.
Ask the Indians what happens when you don't control immigration.
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Re: '76 r 75..
Duane's barely helpful answers are getting worse. If you Google the words he has suggested, the first site that will pop up is HIS site. If he won't tell you the answer, heaven forbid that he should give you the link to his site:
http://w6rec.com/duane/bmw/advance/
By the way, don't put it in quotes (as he did) or all you'll get is this thread with him telling you to Google that phrase.
http://w6rec.com/duane/bmw/advance/
By the way, don't put it in quotes (as he did) or all you'll get is this thread with him telling you to Google that phrase.

MS - out
Re: '76 r 75..
Your headlight relay may be out. The parking light works on a separate current path than the head + tail light.
The high beam flasher (push down on the button, no?) also has its own power source.
If you open your headlight shell, the headlight relay should be the thing on the lower right. The red wire provides the main power. The yellow/white wire sends power to the dimmer switch for the regular low beam and high beam. The grey wire sends power to the taillight. Make sure they are all connected, and that the red wire is 'hot.'
The green wire comes from the 3 position lightswitch. It should be 'hot' when the switch is set to fully on. The brown or black wire connects to ground. These wires are the ones that will flip the relay.
You should be able to get a replacement relay from your local autoparts store IF you have a patient parts person, and not the moron who asks "make, model and year of car?" There is a schematic on the side of the relay of the configuration of switches inside the thing--any replacement relay Must Match Exactly. There are other relays available in the same size package, they will not work right.
The high beam flasher (push down on the button, no?) also has its own power source.
If you open your headlight shell, the headlight relay should be the thing on the lower right. The red wire provides the main power. The yellow/white wire sends power to the dimmer switch for the regular low beam and high beam. The grey wire sends power to the taillight. Make sure they are all connected, and that the red wire is 'hot.'
The green wire comes from the 3 position lightswitch. It should be 'hot' when the switch is set to fully on. The brown or black wire connects to ground. These wires are the ones that will flip the relay.
You should be able to get a replacement relay from your local autoparts store IF you have a patient parts person, and not the moron who asks "make, model and year of car?" There is a schematic on the side of the relay of the configuration of switches inside the thing--any replacement relay Must Match Exactly. There are other relays available in the same size package, they will not work right.
Call me Mel. Some years ago- never mind how long precisely- having little or no money in my purse, and nothing particular to interest me at home, I thought I would ride about a little and see the other parts of the world.
Re: '76 r 75..
Thanks everyone .. I'll try the relay, Mel .,'
Re: '76 r 75..
Hey Bill, good to see you've found the forum. Give me a call about the idle issues, I'm too lazy to type it all out... (and I don't even have a website lol!)
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Re: '76 r 75..
Thanks MS for correcting my search phrase. We can always depend on MS to keep us being accurate.
Bill, I type very poorly, so once is enough. That means that it is on my website for all to read and use, or not.
You will find that 4-5 websites contain just about every aspect of your bike.
Bill, I type very poorly, so once is enough. That means that it is on my website for all to read and use, or not.
You will find that 4-5 websites contain just about every aspect of your bike.
Ask the Indians what happens when you don't control immigration.
- Ken in Oklahoma
- Posts: 3182
- Joined: Tue Aug 03, 2010 5:10 pm
Re: '76 r 75..
As melville indicated. Also when you turn the ignition switch on you should hear the headlight relay clicking inside the headlight shell. If not the problem is indeed likely to be the headlight realay. (Or possibly bad electrical connection, of course.)melville wrote:Your headlight relay may be out. The parking light works on a separate current path than the head + tail light. The high beam flasher (push down on the button, no?) also has its own power source.
Ken
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There's no such thing as too many airheads
There's no such thing as too many airheads
Re: '76 r 75..
Thanks everyone for the info .. This forum is amazing. Duane .. I'll go to your site and thanks..
Bill
Bill
Re: '76 r 75..
Could this just be a fuse blown?
You'll still need to get into the headlight. It's probably best to be seated in front of the bike when you remove the lens.
It can be a frightening experience opening that headlight for the first time!
You'll still need to get into the headlight. It's probably best to be seated in front of the bike when you remove the lens.
It can be a frightening experience opening that headlight for the first time!


Cheers, Steve
Victoria, S.E.Oz.
1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.
Victoria, S.E.Oz.
1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.