Two Brothers Racing Yamaha R1 - Manual (Page 4)

iTBR001-174 2007-08 Yamaha R1 - 4
Fi
gu
re
D
Fi
gu
re
E
Fi
gu
re
F
posi-tap
wire position
grey wire
ground wire
9 Using the supplied posi-tap, attach the grey wire from
the Juice Box Pro to the white wire of the ECU as
shown in Figure D.
This wire is from the smaller of the two ECU
connectors in position 5.
Note:The wire location is numbered on the back of the
connector.
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 in the tail section as shown in
Figure F.
Make sure to clean both surfaces with the alcohol swab before attaching.
12 Tighten the bolts securing the fuel tank bracket.
13 Lower the fuel tank back into position.
14 Reinstall the main seat.
Tuning Notes
This bike uses a fly-by wire system therefore conventional tuning can not be performed
for all RPM and throttle ranges.
The grey wire from the Juice Box Pro is attached to the throttle blade angle sensor of the
throttle bodies which is not directly correlated to the throttle grip position. When setting
the throttle position in the Top Tune software, we recommend on resetting only the
closed position after the bike has completely warmed up. Use the arrow key (<) next to
CLOSED to perform this step and then click OK. Do not try to set the OPEN position
unless you are on a dyno and above 9000 RPM.
You will notice in the maps there are not detailed values below 7000 RPM at 100%
throttle and below 5250 RPM at 60-80%. This is because the throttle blades will not open
more than 60% below this RPM range no matter how much throttle input is given.
Therefore this area can not be tuned.