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2009-10 Suzuki Z400
PARTS LIST
Installation Instructions
1Juice Box Pro
TM
1 USB Cable
1 Top Tune CD-ROM
1 Installation Guide
2Velcro
1 Alcohol swab
FOR RACE USE ONLY
DOWNLOAD THE TOPTUNE SOFTWARE
AND LATEST MAPS FROM OUR
WEBSITE:
www.twobros.com
ITBR001-237
PLEASE READ ALL DIRECTIONS BEFORE STARTING INSTALLATION
401 S. Grand Ave. Santa Ana, CA 92705
(800) 211-2767 www.twobros.com
2009-10 Suzuki Z400 - 1
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Selecting the Map Position
The Juice Box Pro comes loaded with up to ten maps. Using a #1 Phillips
screwdriver, turn the map select dial to toggle between the loaded maps. Refer to
the map position table below for the maps included in your Juice Box Pro.
Using the RPM Range Dials
The Low, Mid, and High RPM Dials refer to the RPM range, in thirds, of your
vehicle. Each dial allows +/- 10% fuel adjustment on top of what fuel changes are
done in the map. With the dial facing straight up, there is no additional fuel change.
For example, if your vehicle revs to 15,000 RPM:
• the low RPM dial will adjust 0-5000 RPM
• the mid RPM dial will adjust 5001-10000 RPM
• the high RPM dial will adjust 10001-15000 RPM
Using Top Tune
Take your tuning to the next level with the Top Tune software.
Position 0 Zero map
Position 1 Stock exhaust
Stock air filter
USB Port
High RPM Dial
Mid Dial RPM
Low Dial RPM
Map Select
Status Light
(Power to Unit)
2009-2010 Suzuki
LTZ 40 0
Installing the Top Tune Software
1 Insert the CD provided into your computer’s cd-rom drive. The launch program
will run automatically.
If auto-run is disabled, double-click the My Computer icon then double-click the
CD drive icon. Double-click TBR Top Tune.exe to manually start the CD.
2 Click Install Software and follow the on-screen instructions to install the Top
Tune software. The Top Tune software and maps will be stored in C:\Program
Files\TBR Top Tune.
3 Click Map Database. All maps will automatically be installed to the C:\Program
Files\TBR Top Tune\maps folder.
Loading Additional Maps
1 Connect the USB cable from the computer to the Juice Box Pro. Verify the cable
is fully seated in the Juice Box Pro.
2 Run the Top Tune software by double-clicking the program icon installed on your
desktop or on your start menu.
3 Click Open Map File and select a map file.
4 Click Send Map. You can send the map to any of the ten map positions.
Altering Maps Using Top Tune
The values in the map represent a percentage of fuel change over stock. A value of
10 in the map indicates at that throttle position and RPM range the vehicle will be
10% richer than stock. If the value is -10, then it would be 10% leaner than stock. You
have the ability to fine tune your fuel curve by altering these values. The Top Tune
software allows a value of +250 to -100 in each cell.
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Figure AFigure BFigure C
unplug
Juice Box Pro
harness
The ignition must be turned OFF before installation.
1 Remove the seat.
2 Remove the fuel tank.
The install can be done without completely removing the fuel tank, but the rear of
the tank will at least need to be raised up.
3 Temporarily lay the Juice Box Pro near the tool kit.
4 Route the Juice Box Pro harness down the right side of the quad.
5 Route the Juice Box Pro harness underneath the frame cross member as shown in
Figure A.
6 Unplug the stock wiring harness from the injector as shown in Figure B.
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7 Attach the connectors from the Juice Box Pro to the stock wiring harness and the
injector as shown in Figure C.
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8 Locate the throttle position sensor (TPS) connector.
This connector is located on the left side of the throttle body to the inside of the
frame as shown in Figure D.
9 Unplug the TPS harness and connect the Juice Box Pro to the wiring harness and
the throttle body.
Figure DFigure E
TPS
10 Attach the ground wire from the Juice Box Pro to the negative side of the battery as
shown in Figure E.
11 Using the supplied velcro, secure the Juice Box Pro to the rear fender as shown in
Figure E.
Make sure to clean both surfaces with the alcohol swab before attaching.
12 Reinstall the fuel tank.
13 Reinstall the seat.
Note:Verify the fuel tank does not pinch the Juice Box Pro wiring harness.
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