Two Brothers Racing FZ8 User Manual

2011 Yamaha FZ8

PARTS LIST

Installation Instructions

1 Juice Box Pro™
1 USB Cable
1 Top Tune CD-ROM
1 Installation Guide
2 Velcro strip
1 Alcohol swab

THE IGNITION MUST BE TURNED

OFF BEFORE INSTALLATION!

DOWNLOAD THE TOPTUNE SOFTWARE

AND LATEST MAPS FROM OUR

WEBSITE:

www.twobros.com

PLEASE READ ALL DIRECTIONS BEFORE STARTING INSTALLATION

401 S. Grand Ave. Santa Ana, CA 92705

[phone] www.twobros.com

ITBR001-305 www.twobros.com 2011 Yamaha FZ8 - 1

Selecting the Map Position

The J uice Box Pro co mes loaded w ith up to ten m aps. U s ing a #1 Phillips
screwdriver, turn the map select dial to toggle be tween the loade d m aps. R efer to
the map position table below for the maps included in your Juice B ox 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 R PM

• the mid RPM dial will adjust 5001-10000 RPM

• the high RPM dial will adjust 10001-15000 RPM

Using Top Tune

Take y ou r tuning to the next level w ith the Top Tun e s oftware.

Position 0 Zero map

Position 1 Stock exhaust

Stock air fi lter

Position 2 Two Bros slip-on

Stock air fi lter

USB Port

High RPM Dial

Mid Dial RPM

Low Dial RPM

Map Select
Status Light

(Power to Unit)

2011 Yamaha FZ8

2011 Yamaha FZ8

I ns t a l li n g t h e Top Tu ne S o ft w a r e
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 TB R Top Tune.exe to manually start the CD.

2 Click Install S oftware 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\T BR Top Tune.

3 C lick M ap Databas e. All m aps will a uto matically be ins talled to the C:\Pr ogram

Files\TBR Top Tune\maps folder.

Loading Additional Maps
1 Connect the US B cable from the computer to the Juice Box Pro. Verify the cable

is fully seated in the J uice B ox 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 C lick Send M ap. You can send the ma p to any of the ten m ap positions.

A ltering M aps Us ing 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 a nd RPM range the v ehicle w ill be
10% richer than stock. If the value is -10, then it would be 10% leaner than stock. You
ha ve the ability to fine tune y our fuel curve by altering these values . The Top Tune
software allows a value of +250 to -100 in each cell.

ITBR001-305 www.twobros.com 2011 Yamaha FZ8 - 2