cbr 600 f rear light not working...

tk338 · Nitrous Nuisance Joined: 29 Apr 2010 Karma :

Neithers the instrument panel, I filled up lasr night, turned the bike back on and they were both not working, well I presume so anyway, I only noticed the instrument panel at the time. It was light when I got to work today, I thought being cold last night itd have fixed the problem, anyways it was light when I got to work today, I finish work at 1am, but I noticed when I got to work my rear light wasn't working. Don't really want to risk a ride home... Any ideas??

Bloggsy · Spanner Monkey Joined: 08 Feb 2010 Karma :

The most obvious thing to check would be the bulb

Ichy · World Chat Champion Joined: 15 Jul 2005 Karma :

No, the most obvious thing to check is the fuse. It is unlikely that the rear light, probably twin bulbs, and the instrument cluster bulbs would all go at the same time.

neil. · World Chat Champion Joined: 24 Feb 2008 Karma :

Check both. Bulbs blowing can often create a short for a moment, enough to blow a fuse with them.
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CBT February 2008 | A2 June 2008 | Yamaha YBR125 (written off) | Honda CBF125 (current)

tk338 · Nitrous Nuisance Joined: 29 Apr 2010 Karma :

Cheers... I've checked bulbs and fuses, replaced them with spares... Nothing, found that when I push the front and the rear brake together everything lights up... I'm feeling a trip to the garage tomorrow morning, in the light! For getting home I had the RAC come out and wire me up a little circuit, but when I got home even that wasn't working :s Very very confused!

Fortuna · World Chat Champion Joined: 29 Oct 2004 Karma :

tk338 · Nitrous Nuisance Joined: 29 Apr 2010 Karma :

pinkyfloyd · Super Spammer Joined: 20 Jul 2010 Karma :

the most obvious place to check is where the wires meet the bulb housing. If there is a bare wire showing then it could be earthing itself. It would cause the filament to blow.

Failing that then its just a case of following the wires to the battery and switches.
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Teflon-Mike:I think I agree with just about all Pinky has said.

tk338 · Nitrous Nuisance Joined: 29 Apr 2010 Karma :

Cheers! I've spent the last half hour trying to make sense of that wiring diagram but I think I'll leave it too the professionals seeing as I need it for tonight Sad

Really appreciate all your help!

EDIT: Fixed all under the warranty I paid for when I bought it! 2 hours work, looks like they've done a lot of fiddling with the after market heated grips too which they sold the bike to me, with them on...

MarkJ · World Chat Champion Joined: 11 Apr 2006 Karma :

Do just the brake lights not come on, or when you turn the lights on does nothihng illuminate from the back?

Also, what isn't working on the clocks? Just the back lights, or tacho, speedo the lot?

The clocks and brake lights seem to share a G/Y wire (Green/Yellow) which could be split. Both the front and rear brake light switches go through this, and if there is a split after the rear switch but before the bulb, the circuit may work if both switches are on because it would ground itself through a live wire.