The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: GrimReaper on November 22, 2009, 10:33:57 PM

Title: Lights not workin
Post by: GrimReaper on November 22, 2009, 10:33:57 PM

Tail light,front parking light and instrument light dont work.Fuses are good.Is it the light relay and if it is where is located?

Title: Re: Lights not workin
Post by: Rob Valdez 79 R65 on November 23, 2009, 01:09:35 AM

Please put the year of your bike in your signature line.  It is a critical component on a question like this.
Stuff changed between '80 & '81 and '84 & '85.

Title: Re: Lights not workin
Post by: Darwin_R65 on November 23, 2009, 04:05:35 AM

Does your bike start?
Horn work?
Indicators?
Can you flick to high beam?

There is two wires going to the battery positive, are they both securely attached?
Do your neutral/oillight/gen lights come on when ignition turned on but not started?

John

Title: Re: Lights not workin
Post by: Darwin_R65 on November 23, 2009, 04:15:11 AM

p.s I'll assume from your posts on 18Nov09 you've got a 1987 R65 mono
http://www.bmwr65.org/cgi-bin/yabb2/YaBB.pl?num=1258511220/0#0
 :)

Title: Re: Lights not workin
Post by: GrimReaper on November 23, 2009, 09:20:16 AM

Bike starts,idiot lights work,High/low beam work too.Only rear,speedo,clock,voltmeter and front parking light

Title: Re: Lights not workin
Post by: Bob_Roller on November 23, 2009, 09:46:31 AM

I don't know how different a monoshock bike is in the wiring department, but the diagram I have for an '81 model year bike, shows the effected circuits that you mentioned, come off of the same fuse .

I think I'd go back and take a good  look at the fuse installation, as it probably has two prongs the fuse sits between, they have been known to spread out, and give a not so good contact between them .

Take a look at the wire connections to the fuse holder as well .

The fuses aren't the greatest design either, remove them, and look them over as well .

Title: Re: Lights not workin
Post by: GrimReaper on November 23, 2009, 10:01:47 AM

Quote

I don't know how different a monoshock bike is in the wiring department, but the diagram I have for an '81 model year bike, shows the effected circuits that you mentioned, come off of the same fuse .

I think I'd go back and take a good  look at the fuse installation, as it probably has two prongs the fuse sits between, they have been known to spread out, and give a not so good contact between them .

Take a look at the wire connections to the fuse holder as well .

The fuses aren't the greatest design either, remove them, and look them over as well .

Bob,the wiring is the same,I check the sprongs and change the fuse.Everything shows bad fuse.I will take another look as well

Title: Re: Lights not workin
Post by: GrimReaper on November 23, 2009, 11:22:19 AM

Problem solved.I find out that there is no power at fuse at all.I take apart whole bike and sprayed every single electrical conection with El. Cleaner.Now everything works fine.Even the engine ;D

Title: Re: Lights not workin
Post by: Bob_Roller on November 23, 2009, 12:13:50 PM

That's a good idea early on, as it's not uncommon to find loose or dirty/corroded connections in the electrical system .

The wire that supplies power to that fuse, comes off of the ignition switch, so if it happens again, you could have issues in that area .

Title: Re: Lights not workin
Post by: Darwin_R65 on November 23, 2009, 04:32:11 PM

glad to hear you found the problem.