Pink wire ?

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Whats up with this ? Anyone Know what the wire actually does ?
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In short, the gist I have gathered is that the pink wire is a connection to something that retards power abilities during 2nd/3rd gear so that the bike can pass US emission testing. Cutting the pink wire basically gets rid of this drop in power...we should have a "how to" posted on here soon...anyone on the group that wants to put that how to together, please let me know.

OB_hiyabusa

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the pink wire thing is exactly as you have stated! from what i have read it retards the ignition in 3rd gear at 5000 rpm's to get past euro noise regs. although, i have heard it MAY, work in two gears, in the u.s. i have nothing in writing on that. my busa has 2,600 miles on it now 1,200 with a cut wire! to be honest, i really noticed no difference when i cut it so it must be minimal. to cut it. you pull the seat.(two allen bolts) you will find the black box right there. it has two multiwire connectors going into the ''brain''. pull the SMALLER, of the two off the box. now, look closely at the color of the wires . of those on top you will see one pink one, BUT, it has a small stripe on it. DON'T CUT IT!. twist the coupler thru 180 degrees to expose the wires that were on the bottom. there you will find an ALL PINK WIRE. cut IT!! reconnect the coupler and remount the seat, just to cover my butt, i cut mine, far enough away from the coupler, that i can put it back togather again with a crimp type butt connector if necessary. it's a piece of cake.

OB_richie

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do not, i repeat, DO NOT cut the pink wire. there are no confirmations on this. someone started passing out rumors on cutting certain wires on the gsxr and the tlr and this indeed improved mid-range punch. however, numerous, and i mean numerous motors were suddenly and unexpectadley blowing up. yes, that was a bogus method for cheap horsepower. seems it made the engine run really lean on the top end. and guess what? no warranty in the world will cover it if this happens. so, until there is reliable information available, i recommend no cutting of wires. hell, spend the bucks and get a pipe and the fuel injection remapped. this thing has more than enough power now, but at least with the pipe and remapping, this is safe horsepower. good luck.
mike, lets find out fast if this is true

OB_richie

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do not, i repeat, DO NOT cut the pink wire. there are no confirmations on this. someone started passing out rumors on cutting certain wires on the gsxr and the tlr and this indeed improved mid-range punch. however, numerous, and i mean numerous motors were suddenly and unexpectadley blowing up. yes, that was a bogus method for cheap horsepower. seems it made the engine run really lean on the top end. and guess what? no warranty in the world will cover it if this happens. so, until there is reliable information available, i recommend no cutting of wires. hell, spend the bucks and get a pipe and the fuel injection remapped. this thing has more than enough power now, but at least with the pipe and remapping, this is safe horsepower. good luck.
mike, lets find out fast if this is sent from Carbongsxr today

rotts4u

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Richie is right DO NOT CUT THE WIRE

Here is the official reply from Suzuki


""Disconnecting this wire to increase performance is a common misconception.

If you were to disconnect the gear position (pink) wire on any Suzuki EFI
motorcycle, poor performance and possible engine damage will result.

This rumor started because earlier model carbureated GSX-R1100's used a pink
wire to retard ignition timing in first gear to improve traction. Some
tuners discovered that disconnecting the wire increased engine HP output in
first gear. The motorcycle did produce more engine output with the wire
disconnected, but it became more difficult to accelerate from a stop and
actual acceleration and traction was reduced. But riders liked the "feel" of
increased engine performance.

The Gear Position Switch wire is also colored pink on the GSX1300R Hayabusa,
as it is on previous Suzuki's. Like the TL, this switch provides
transmission gear information to the motorcycle's Electronic Control Module
(ECM).

Some mechanics and consumers have experimented with disconnecting this wire
to improve performance or drivebality (especially during the very early
TL1000S driveablity problems before Suzuki released the improved, revised
ECM).

As the rider selects higher gears, the ECM changes the injector duration,
usually longer, producing a richer mixture to compensate for the additional
air provided by the SRAD ram air system. Without the additional fuel, the
mixture will become lean, performance will deteriorate and engine component
damage is possible.

Since a disconnected gear position wire will make the ECM think the
transmission is in neutral, the injector duration is longer than it might be
in the first couple of gears.

This is why the customer might feel a "seat of the pant" driveablity
improvement".

A mechanic using a Dyno may see different, or improved HP with the wire
disconnected.

BUT, since the dyno is testing a static motorcycle without a pressurized air
box from the ram air system, the results do not indicate real world
performance. A fully operational EFI system on a dyno will indicate lower
peak power as the mixture is slightly rich. Disconnecting the "pink wire"
will lean the mixture to a better level for a non-moving motorcycle.

Once again, leaving the wire disconnected will reduced on-the-road
performance and could lead to engine damage.""

OB_hiabuser

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yes, that was me that wrote that little peice on "do not, i repeat, DO NOT cut that pink wire" i e-mailed richie about it and he was kind enough to let you guys in on it. have fun.
mike

OB_speed

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I have a problem with the pink wire tutorial. It has inconsistencies in it. like the two following quotes.

"ECM think the
transmission is in
neutral, the injector
duration is longer than it
might be in the first
couple of gears."

AND

"Disconnecting the "pink
wire" will lean the mixture
to a better level for a
non-moving motorcycle."

These statements contradict each other how can it both lean & richen ??!! if the injector with is longer it it would richen a move or non-moving motorcycle.

How relieave is our suzuki source ? Could this just be a scare tatic by suzuki to keep everyone in check ?

OB_Kamikaze

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Well,cut it.
If I were you guys I would not cut it,I've heard that from some reputable tuners.

OB_FromKattoBus

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I just wanted to warn anybody who does cut the pink wire...

1. Make sure you haven't consumed a large amount of alcohol before doing so...this could lead to the accidental slicing of all wires, which would be a headache.

2. Dont cut it with the bike running and a pair of pliers with no rubber handles. (and take your foot out of the dog's water dish). Deaths occuring by this have not been documented but its better to be safe then sorry.

3. I also heard that if you put 110 octane fuel in the Bus it would increase power, and even better if you added fertilizer...(this is a joke, please do not do this)

Moral of the story...Don't believe everything you hear and please (who needs more power?). If you do, buy a R1...HAHAHA. Now that was funny!
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Hey, Hey. Enough of the R1 jokes, I happen to be the proud owner of a 98 R1 and a 99 Abuser, wouldn't trade either one of them. Both are great fun for their respective purpose, and I think that is to have fun, (if you can call scaring the crap out of yourself fun).

OB_FromKattoBus

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True story, I wont do that because of the simple fact that I have neither and I was having trouble deciding between the Hybus, the R1, the R6, and F4 due to the fact they all give you a different experience, and that they all have their purpose.
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