
Two Brothers Racing
V.A.L.E.
V A R I A B L E A X I S L O C K I N G E X H A U S T
TM
Juice Box™ - Fuel Controller
2006-08 Kawasaki ZX-14R Installation & Operation Manual
Part # 0 08-149C
Parts Incuded
Qty. Description Part Number
1 Juice Box™ Fuel Control Kit 008-149C (#9140059C)
3 Zip Ties
1 Adhesive Velcro Square
IMPORTANT - PLEASE READ CAREFULLY
We recommend that this performance part be installed by a qualied motorcycle
technician. If you have any doubts as to your ability to install this performance part,
please consult with your local motorcycle dealer. Read all instructions rst before
starting installation. Make sure the vehicle and exhaust system are completely cool
before starting the installation. Also, make sure the vehicle is secure during installation.
Be sure to save all stock components for possible use later.
Installation Instructions
Thank you for purchasing a genuine Two Brothers Racing
JUICE BOX™. This product represents a radical step
forward in tuning fuel-injected motorcycles and ATVs for
optimal performance using “load-based” technology.
We at Two Brothers Racing hope that you will find this
development as exciting and useful as we do. And
remember: Proper Fuel = Maximum Power!
Make sure the vehicle is completely cool before starting
1.
the installation. Also, make sure the vehicle is secure and
will not roll around.
Remove the eleven bolts that secure the left side panels.
2.
Remove the two plastic pop-rivets, one inside the front
left panel near the front wheel and above the left front
turn signal and one where the right and left lower panels
join behind the front wheel. Gently pull the left side
panels off. (Fig 1)
Fig 1
Remove the bolt that secures the tank plastic to the frame
3.
near the steering stem. (Fig 2)
Fig 2
Locate the brown 16 pin block connector directly behind
4.
the throttle bodies, under the tank and disconnect. (Fig 3)
Fig 3
Connect the JUICE BOX™ connectors to these
5.
connectors. Route the JUICE BOX™ harness along the
main stock harness and up to the front of the bike. Attach
the ground lead (black wire) to the silver bracket with bolt
that attaches to the frame near where the ram air tube
enters the air box. (Fig 4)
Fig 4
Attach the adhesive backed hook and loop material to the
6.
back of the JUICE BOX™ and the black left side trim panel
just left of the instrument cluster. (Fig 5)
Fig 5
Start the bike. The green LED should scroll left to right and
7.
back for about 3-5 seconds and then go to 1-2 steady or
slowly flashing green LED’s. If the number 1 green LED
and number 8 red LED’s continue flashing after startup
or idling, an injector wiring error is indicated. Re-check
the wires from the JUICE BOX™ and make sure they are
connected to the proper wire of your bike’s stock harness.
MAKE SURE you have the correct wires selected in
the stock harness. DO NOT PROCEED UNLESS ABOVE
CONDITIONS ARE MET.
Bike reassembly is opposite of disassembly.
8.
NOTE: Re check your wire routing and JUICE BOX™
9.
location and make certain that in no way the wires can
come into contact with any moving parts or high heat
source and that the JUICE BOX™ is mounted in a way as
to not cause a handling problem with the machine.
This Juice Box is legal for use on Emissions Controlled street and highway vehicles.
The Juice Box™ is not applicable, nor inteded for use on aircraft.
Warranty
Two Brothe rs Racing w arrants tha t this produ ct carries a warranty for 2 years from date of purchase against or iginal
defects in materia ls and work manship. S hould this product fai l to perfor m for eithe r of the ab ove reasons , Two Brothers
Racing will repair or replace it with an equivalent product at no charge, except for postage, to the origin al retail pu rchaser.
To obtain t he benefits of this wa rranty, the r etail purch aser must r eturn the pr oduct and p roof of pur chase to th e place of
origina l purchase.
Continued on page 2

Operation Manual
Two Brothers Racing
Juice Box™ - Fuel Controller
2006-08 Kawasaki ZX-14R Installation & Operation Manual
Part # 0 08-149C
Cleaning
If the unit requir es cleaning , use a clo th that is only lightl y dampened with water or mild det ergent.
It is recommended that the pre-programmed settings of
1.
the Juice Box™be used. However, the Juice Box™ can be
adjusted to suit different engine modifications, states of
tune and environmental conditions. To begin this process,
press the mode button. To enter each successive mode, just
press the mode button again. Note that every mode will
be identifiable by the color(s) of the flashing LED(s) on the
LED display.
by an LED color or color combination.
as follows, respectively: Green, Yellow, Red, Green-Blue,
Yellow-Blue and Red-Blue.
2.
You are now ready to manually program each mode.
Consult the base settings supplied with the unit.
To program the Juice Box™, the bike must be running in
order to supply power to the Juice Box™.
Simply press the mode button to activate the first mode.
If at anytime you stay in an adjustment mode for longer
than 5 seconds without pressing any buttons, the Juice
Box™ will exit the adjustment mode and will return to the
operational mode.
To save settings in a particular mode press the MODE
button which goes to the next adjustable mode or wait for
the Juice Box™ to exit back to the operational mode.
The settings in each mode are adjusted by pressing the
(+) and (-) buttons located on the right and left side of the
mode button, respectively. For easy reference, the LEDs are
numbered 1 through 8. However, the LEDs can be adjusted
to the following positions: 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5,
5.5, 6, 6.5, 7, 7.5, 8. For example, in a particular mode, if LED
4 is flashing then the LED display is set to 4 in that mode. If
the (+) button is pressed once then LEDs 4 and 5 will flash
simultaneously and the LED display is set to 4.5. If the (+)
button is pressed once again, only LED 5 will flash and the
LED display is set to 5. The LED display can also be set
to 0.5 by pressing the (-) button and scrolling the colored
LED to position 1 and then pressing the (-) button once
more until the LED in position 1 is flashing twice as fast as
normal.
I.
additional amount of fuel added under cruise conditions.
A flashing green LED should appear on the LED display.
To add more fuel, scroll the flashing green LED to the right
using the (+) button. To add less fuel, scroll the flashing
green LED to the left using the (-) button. If you set the
flashing green LED to the 0.5 position on the LED display,
no fuel will be added to the stock fuel curve.
Note: In order for the Juice Box to meet emissions
requirements, a small portion of “The first mode (Green
Mode)” is non-adjustable. Operation of this mode remains
unchanged from the above instructions. However, during
vehicle operations a single green LED will slowly flash on
the LED display indicating that the vehicle is operating in
the Emissions Legal Zone and no modification to the stock
fuel curve is taking place.
There are six modes that are distinguished
The 6 modes are
The first mode (Green Mode) represents an
II. The second mode (Yellow Mode) represents an
additional amount of fuel added during acceleration. A
flashing yellow LED should appear on the LED display. To
add more fuel, scroll the flashing yellow LED to the right
using the (+) button. To add less fuel, scroll the flashing
yellow LED to the left using the (-) button. If you set the
flashing yellow LED to the 0.5 position on the LED display,
no fuel will be added to the stock fuel curve.
III.
The third mode (Red Mode) represents an additional
amount of fuel added during full throttle conditions. A
flashing red LED should appear on the LED display. To add
more fuel, scroll the flashing red LED to the right using the
(+) button. To add less fuel, scroll the flashing red LED to
the left using the (-) button. If you set the flashing red LED
to the 0.5 position on the LED display,
to the stock fuel curve.
Note: If the flashing green, yellow and red LEDs in modes
1 through 3 (Green, Yellow and Red) are set to the 0.5
position on the LED display then the Juice Box™ will not
add any fuel to the bike’s stock fuel curve. This setting will
essentially turn off the Juice Box™ even though it is still
attached to the bike’s fuel injection system. The bike will
run as though the Juice Box™ is not installed. The Juice
Box™ LEDs will still operate normally even though no fuel
is being added.
IV.
The fourth mode (Green-Blue Mode) is Not
Required for this particular model.
V.
The fifth mode (Yellow-Blue Mode) is an adjustment
to determine the time when the acceleration/Yellow Mode
fuel amount turns on. A flashing yellow LED appears on
the LED display while at the same time a flashing blue LED
appears on the 8th LED. To increase the sensitivity and
therefore cause the Yellow Mode fuel to turn on sooner,
scroll the flashing yellow LED to the left using the (-) button.
To decrease the sensitivity and therefore cause the Yellow
Mode fuel to turn on later, scroll the flashing yellow LED to
the right using the (+) button.
VI.
The sixth mode (Red-Blue Mode) is an adjustment
to determine the time when the full throttle/Red Mode fuel
amount turns on. A flashing red LED appears on the LED
display while at the same time a flashing blue LED appears
on the 8th LED. To increase the sensitivity and therefore
cause the Red Mode fuel to turn on sooner, scroll the
flashing red LED to the left using the (-) button. To decrease
the sensitivity and therefore cause the Red Mode fuel to
turn on later, scroll the flashing red LED to the right using
the (+) button.
no fuel will be added

Two Brothers Racing
Juice Box™ - Fuel Controller
2006-08 Kawasaki ZX-14R Installation & Operation Manual
Part # 0 08-149C
Operation Manual - JUICE BOX™ Settings
(‘06-08) ZX-14R Dual Slip-on Settings:
ZX-14R baseline settings with stock air filter and TBR Dual Slip-on system. (G=0.5, Y=3, R=0.5, GB=N/A YB=4, RB=3)
Mode 1 - Green
Mode 4 - Green/Blue Mode 5 - Yellow/Blue Mode 6 - Red/Blue
Mode 2 - Yellow Mode 3 - Red
(‘06-08) ZX-14R 4-2-1 Full Exhaust System Settings:
ZX-14R baseline settings with stock air filter and TBR 4-2-1 Full system. (G=0.5, Y=4, R=0.5, GB=N/A YB=4, RB=3)
Mode 1 - Green
Mode 2 - Yellow
Mode 3 - Red
Mode 4 - Green/Blue Mode 5 - Yellow/Blue Mode 6 - Red/Blue
For additional settings please visit our website at www.twobros.com.