Brake light not working - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 30 Old 01-19-2015, 06:03 PM Thread Starter
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Brake light not working

Hey guys, maybe one of you has had this problem before. I noticed my brake light doesn't work using my foot pedal or handlebar lever. I looked at it a little bit yesterday and checked it again this afternoon when I got home because Saturday when I got it home I pressure washed it with a little electric pressure washer to get some of the grime off of it. I need to mention that I just bought it Saturday afternoon. it's an "06". I was going to ride it yesterday afternoon and noticed that the brake light didn't work, the tail light works but the brake light doesn't. I figured that maybe the washing got something wet but I checked it again today and nothing. yesterday I unplugged and replugged in the connections I could find under the seat and checked the 2 fuses by the battery but still nothing. I don't have a repair manual yet and figured one of you guys may have had this problem before. I need someone to enlighten me on some other things to check. I just find it hard to believe that both the foot and lever switch have gone out. I'm not sure if brake light worked when I bought it, I didn't check. I know the bulb is good because I removed it and inspected it. Thanks for any help you guys can inspire me with.
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post #2 of 30 Old 01-19-2015, 07:10 PM
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Keep it simple. Get another bulb and try it. They aren't expensive. Even though you inspected the bulb and see nothing there may be a problem that is not visible.

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post #3 of 30 Old 01-19-2015, 11:22 PM
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Agree with substituting bulb (or continuity-testing the old one); meanwhile, waiting for the service manual, here's a link to the Generation 1 wiring diagram; if not the bulb, grab a multi-meter and let it be your guide:

https://drive.google.com/file/d/0B0B...TU5/edit?pli=1

(This PDF file has built-in zoom controls, if you download and open it.)

Last edited by Damocles; 01-19-2015 at 11:26 PM.
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post #4 of 30 Old 01-20-2015, 08:26 AM
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Change Bulb. Post results.

“Take the risk of thinking for yourself , much more happiness , truth, beauty, and wisdom will come to you that way.” Hitchens
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post #5 of 30 Old 01-20-2015, 10:22 AM Thread Starter
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I'll try and check when I get home. I usually on have 30 to 45 min. of daylight before it gets to dark to work on it. I don't have a shop or shed or anything like that yet.
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post #6 of 30 Old 01-20-2015, 12:35 PM
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Do you have a meter or test light?
Following on Damocles suggestions, you can test the two contact buttons in the bulb socket to see if there is power to the tail light button and to the brake light button when lever/pedal is operated.

+1 on try a bulb. Might simply be a bad connection on the bulb or socket. If there is power at the socket, you can use a brush or Scotchbrite pad to clean.
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post #7 of 30 Old 01-20-2015, 06:13 PM Thread Starter
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Keep it simple seemed to work guys. Got a new bulb and used a battery terminal brush in the socket and it worked with the new bulb. Didn't even try the old one just inspected it once more and both filaments looked to be intact but who knows, I just tossed it in the trash. It failed me so It doesn't need to be around. Thanks again guys.
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post #8 of 30 Old 01-20-2015, 06:40 PM
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Good stuff!
I should have mentioned that a bulb #2357 from an auto supply store has a brighter brake filament which is better. You may wish to use LPS or Fluid Film to spray the bulb socket and all the wiring plugs.

The tail& brake light harness plug is under the left rear of the seat and the three bullet connectors which connect the tail & brake light assembly to the wiring harness are in the loom just ahead of the light, under the left side, along the frame.

These bullet connections are often corroded on Gen1 so worth giving these a spray 2X per year. I recommend spraying all the connectors at least 1X per year.
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post #9 of 30 Old 01-21-2015, 04:09 AM Thread Starter
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Thanks for the info Normk. I never would have thought that a bulb that looked intact would in fact be bad. I had never seen that before and I've been working on all my own stuff since I was 16. I guess you can teach an old dog new tricks......lol.
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post #10 of 30 Old 01-21-2015, 12:47 PM
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Welcome! For me there is nothing better than to learn something, especially if that is learning that I am wrong. Throwing these questions and concepts out there for examination can be very worth while here as people will often provide useful perspective. I recall going around on another group regarding wiring corrosion, where the other party was "dissing" strongly over my suggestion that this was a problem. Turns out that he lives in the desert... different set of problems but once we got past that, I learned some interesting things which we never see.

One real, "Hmmm?" is with regards the air cooled ND alternators on Honda ST1100's. In UK they have big problems with corrosion and even spreading and breakage of the alternators. We never see anything like that here.



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Originally Posted by kajun klr View Post
Thanks for the info Normk. I never would have thought that a bulb that looked intact would in fact be bad. I had never seen that before and I've been working on all my own stuff since I was 16. I guess you can teach an old dog new tricks......lol.
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