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06xb9r
07-24-2007, 10:20 PM
Does anyone know exactly what disconnecting the white wire on the xb9 does? What is this wire for?

BuellPartsGuy
07-24-2007, 11:08 PM
Where is this magical wire?

xtremelow
07-25-2007, 04:33 AM
I just reran a bunch of my wires and one of the headlight wires is white.

So I imagine it is the low beam and it would then allow you to drive with no running light. Just a guess.

Brandon

LeFox
07-25-2007, 08:21 AM
white wire in grey plug connects to a sensor which keeps the exhaust within environmental standard.

if you have a race ecm, this does not matter, since it is not taken into account by the ecm

LeFox
07-25-2007, 01:40 PM
http://www.mbedesign.com/buell/imatgesweb/vuitXB9-1.jpg
http://www.mbedesign.com/buell/imatgesweb/vuitXB9-4.jpg
http://www.mbedesign.com/buell/imatgesweb/vuitXB9-5.jpg
http://www.mbedesign.com/buell/imatgesweb/vuitXB9-6.jpg
http://www.mbedesign.com/buell/imatgesweb/VuitXB9-7.jpg

instead of cutting it, do this and seal of the hole in the connector to protect it.

tbramich
07-25-2007, 11:37 PM
just cut it out. wires were an option you didnt ask for!!!!

jgxb9r
08-30-2007, 06:12 PM
would there be any benefit for cutting the white wire?

06xb9r
08-30-2007, 08:46 PM
I unplugged this wire and it didn't really seem to make a difference, so I just plugged it back in.

LeFox
08-31-2007, 07:03 AM
plz note, that if you have a race ecm installed, this mod is useless.

why?
cause the race ecm doesn't send a pulse over the white wire.

why not?
because the signals sent over the white wire is for environmental related/fuell emission laws, which limits the performance of the bike.

NL90
09-04-2007, 02:31 AM
If I pull this wire is there anything else I need to do before riding? [confused]

NL90
09-04-2007, 02:46 AM
Adding on to what I asked..
I have a K&N Air Filter, Jardine Exhaust, And a Dobeck kit. Will I be able to tell a difference right away?

LeFox
09-04-2007, 07:24 AM
I have a K&N Air Filter, Jardine Exhaust, And a Dobeck kit. Will I be able to tell a difference right away?

i don't know how it will be in combination with the dobeck kit, normally there should be a noticable difference.

but i would suggest not to cut the wire, but use the method mentioned above. just unplug the wire, testride and if you're pleased with the result, finish the work.

NL90
09-04-2007, 04:44 PM
Thanks LeFox [up]

xbhooligan434
10-16-2007, 04:22 AM
does this mod also work with the xb12's

justice720
02-05-2008, 04:26 PM
nice I'm on it this afternoon. any other freebie mods I should look up?

chrispudd
03-21-2008, 03:50 PM
Hmmm.. I can't help but be doubtful of this white wire's PFM (pure friggin magic)..... I'd love to get more performance, but does anyone know what this wire is actually for? I really don't want to try it without knowing more about what's on this wire. Is it an input to the ecm? I'm an auto mechanic and I've never heard of disconnecting a wire for more more performance. If there's free horsepower lurking somewhere in my bike, I want it! If anyone knows more about this wire and its relationship to the ecm, please let me know. I enjoy the technical stuff so bring it on!![smirk]

LeFox
03-21-2008, 04:01 PM
If anyone knows more about this wire and its relationship to the ecm, please let me know.

plz note, that if you have a race ecm installed, this mod is useless.

why?
cause the race ecm doesn't send a pulse over the white wire.

why not?
because the signals sent over the white wire is for environmental related/fuell emission laws, which limits the performance of the bike.

WULFGODSXB
08-12-2008, 12:38 AM
thanks for the great pics lefox just did mod tonight on xb12x. won,t know anyhing till morning ride to work [up] mod took 5 min max. lefox this time i remembered to shut cap locks off ;)

burnteyes
08-12-2008, 04:25 PM
yeah post update on your 12

WULFGODSXB
08-13-2008, 01:34 AM
couldn't feel much difference in first and second when pulling on to the freeway seemed to pull strong from 2nd to 3rd wanting to lift. maybe just never payed that much attention before mod but it only took 5 min and is totaly reverseable. so i think it was worth it [up][up]

FIDOSOL
08-13-2008, 01:38 AM
hey wulfs, from what I've been told the white wire goes to something else on the 12, not sure though, maybe BPG knows...

Thaloc
08-13-2008, 03:10 PM
Id like to do this to my 08 XB12R, or is this only for the 9?

LeFox
08-13-2008, 07:46 PM
far as i know, it's only for the 9 :o

YumaBuell
08-13-2008, 10:37 PM
I will give it a shot too. Well....that is when I figure out this whole ignition fuse blowing fiasco!

zoedogg1
08-13-2008, 11:26 PM
Hmmm...interesting. I heard the white wire was hooked up to an actuaul living human brain hidden somewhere under the transmisson....sorry...:p

matter
08-13-2008, 11:45 PM
I have done this back and forth a few times in ECM Spy to my 12 and noticed it felt a bit snappier and also the rev's don't hang as much. Engine speed comes down quicker and doesn't feel so much like it has a 50 lb flywheel. Pops a little more on deceleration though. Nice free mod.

Matt

WULFGODSXB
08-14-2008, 12:46 AM
I traced white wire in scamatics it runs to the vss and to the gage cluster. not sure yet what in all the vss accounts for yet but when i find out i'll post it vss= vehicle speed sensor

WULFGODSXB
08-14-2008, 01:12 AM
the only thing i can find so far are the pin outs of the plugs on pinout.ru according to them it is the same on the 9 and the 12. so it should be blocking or disabling the same signal

06xb9r
08-14-2008, 01:58 AM
But what EXACTLY does disconnecting this wire DO? Why/how does it give you more power?

Thaloc
08-14-2008, 02:15 PM
Pretty sure they said this above already, but the white wire carries a fuel limiting signal. By disconnecting your are turning off that fuel limiter. e.i. more power.

06xb9r
08-14-2008, 05:09 PM
OK, so it just puts more fuel into the engine

WULFGODSXB
08-18-2008, 09:48 PM
Just a little fyi. downloaded xb12 race ecm and if you load it in to ecmspy the white wire is shut off ;)

FireBolter413
04-03-2012, 09:24 PM
where is this white wire disconnect at on the 03 xb9r?

Stevenc150
04-04-2012, 09:52 AM
It's the white wire in the harness that goes to your ECM - most just pull the pin out the back of the connector.

jasonxb9
04-04-2012, 10:12 AM
Is there a specific year range? I have an 07 9sx.

ReconLdr
10-27-2012, 09:34 AM
I know this is an old thread.... Has anyone noticed any ill effects of doing this mod?????