Adding a Brake light modulator - Wrist Twisters
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post #1 of 4 Old 08-24-2008, 04:41 PM Thread Starter
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Adding a Brake light modulator

Hi all,

I'm adding a brake light modulator to an '07 919. I am wondering which wire to connect this too. I found a wiring diagram in the 919 helpful links page. The diagram shows 3 wires going to the light; Green/Yellow, Green and White/Green. Am I correct in my assumption that hte Green/Yellow is the wire I wish to splice into?

Also, on another topic; As I look at possible Slip-on mufflers I've noticed that many are only listed through '05 model year. Would these also fit '06 and '07s?


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post #2 of 4 Old 08-24-2008, 04:51 PM
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These are the instructions I was given by another Wrist Twister and they worked for my '07 -

The 919 has two dual filament brake lights; three wires in a chain. Green is ground; Green/Yellow powers the brake light; Brown powers the running light. I looked on the wiring diagram last night to confirm that. If you are going to flash the existing lights you just have to cut and splice into the Green/yellow wire before the first of the two bulbs. You can check that this is the correct wire since after you cut it you will loose your brake lights. But after you cut it the running lights should still work. Then all you have to do is connect the proper BackOff wires to each end of the cut wire and tie the BackOff (black I think) in to ground.

So, green is the ground wire, green/yellow wire powers the brake lights, brown wire powers the running light.

As for the exhaust, I'm pretty sure nothing changed from '05 - '07 but maybe someone else could confirm.

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post #3 of 4 Old 08-24-2008, 05:15 PM Thread Starter
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post #4 of 4 Old 08-24-2008, 05:21 PM
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The exhausts are all the same. There is nothing different for the piping.

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