Two Brothers Racing Yamaha FZ8 - Manual (Page 5)

ITBR001-305 www.twobros.com 2011 Yamaha FZ8 - 5
The Juice Box Pro for this model controls the stock closed loop area. This area
is represented by the highlighted cells shown in Figure G. The Juice Box Pro is
designed to achieve a target AFR of 13.6:1. To use this Juice Box Pro you must
retain your stock O2 sensor.
It is not recommended to alter the values in the highlighted area unless
instructed to do so by a Juice Box Pro technician.
Reset the Throttle Position in the Top Tune Software
It is recommended to reset your throttle position in the Top Tune Software.
1. Connect the USB cable to your computer and to the Juice Box Pro.
2. Open the Top Tune software
3. Select Device Tools >Calibrate Throttle.
4. Turn the ignition of the bike to the ON position
5. Click Reset in the software.
6. Give the bike full throttle and then release.
7. Click OK. This will reset the TPS.
Figure G