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Discussion Starter #1
Hi all,

I have just recently got my first cbr 600rr (2005) and I have a couple of issues -

1. The low (dipped) beam does not come on at all, not on IGN or when the engine is actually turned over. The high beam works fine on the switch

2. I have just been fitting my tail tidy and noticed my tail light bulb is also not working (indicators are working fine) The brake light/stop light comes on when I press the brake but doesn't stay on normally light it should with the headlight so I wondered if perhaps a fuse might be linking the two that is out?

I'm going to check the fuses first but incase they are all fine I thought I would make this post to see what else I could try. I know the bike has been on the track in the past so wondered maybe some wiring somewhere has been tinkered with...

Thanks for any help
 

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My low beam is the same way! I?ve been told to check the wiring at the start switch to see if the connections are retaining any voltage and/or still attached. Lmk if you find a solution to that, I haven?t had a chance to work on my bike yet but maybe that is an option
 

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I don't think there is a common fuse for your headlight/taillight. I would inspect the wiring to your taillight, and the harness that your taillight connects to. Sounds like you have a broken wire.

Does the same thing happen when you hit your front or rear brake? Is the light emitted from your rear brake light when switched on bright or dim?

Also, you could try switching the bulb from your high beam to your low beam. Wear gloves, don't let the oils from your fingers get on the bulbs.
 

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I guess in the most obvious order:

1) Check that the bulbs are OK
2) If so, then check the fuses are OK
3) If so, then start to look into the wiring/connection points

It is very unlikely that the wiring is damaged unless you or previous owners have made modifications.
My '06 600RR had some intermittent annoying problems with the wiring simply because previous owners had spliced into the wiring, installed flush mounts, etc. These things are not an issue in themselves but when you incorrectly route wiring, have wiring that's too short (or even too long in some cases), not insulate open connections properly, etc. you will introduce issues.

As with anything electrical, get yourself a hold of the wiring diagram. Will help you find the cause if the issue is not with a blown bulb/fuse.
 

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I guess in the most obvious order:

1) Check that the bulbs are OK
2) If so, then check the fuses are OK
3) If so, then start to look into the wiring/connection points

It is very unlikely that the wiring is damaged unless you or previous owners have made modifications.
My '06 600RR had some intermittent annoying problems with the wiring simply because previous owners had spliced into the wiring, installed flush mounts, etc. These things are not an issue in themselves but when you incorrectly route wiring, have wiring that's too short (or even too long in some cases), not insulate open connections properly, etc. you will introduce issues.

As with anything electrical, get yourself a hold of the wiring diagram. Will help you find the cause if the issue is not with a blown bulb/fuse.
He just installed a fender eliminator (tail tidy for my euro brothers).

It is possible he reconnected rear turn signals, and maybe rear brake light - depending on what kit he purchased. As far as "bulbs" are concerned, there is only one set for the rear brake light. Don't quote me here, but when the rear brake light is engaged (front or rear), the resistance to the "bulb" is lowered, hence it becomes brighter.

Feel free to bang on my comment. I'm only level 2 technician :retard:
 

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Discussion Starter #7
Thanks for the replies - so an update.

The dash/tail light/brake light all turned out to be linked and were just a fuse as suspected, all are working again with a working fuse.

The headlight is still out so must be a specific issue I will check the bulb today and try my working high beam in the low beam slot, if it still doesnt work ill check the starter wiring to see if thats a cause aswell.
 

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Discussion Starter #9
So, turns out it was the broken bulb! False alarm I guess but thanks for the replies all!
 

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all's well that ends well.

lots of issues could be quickly sorted out by simply looking at your bike prior to making a post.
Nonsense! Who in their right mind would attempt to diagnose an issue with their vehicle without taking it to a shop first!

IMO, learning how to wrench/electrical will save you thousands of dollars in the long term!

Thanks be given to wibbly who devotes his personal time to this forum! :thumbup:
 
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