Yamaha 2007 R6 Service

FEATURES
1-2
EAS20170
FEATURES
ET2C01025
OUTLINE OF THE FI SYSTEM
The main function of a fuel supply system is to provide fuel to the combustion chamber at the optimum 
air-fuel ratio in accordance with the engine operating conditions and the atmospheric temperature. In 
the conventional carburetor system, the air-fuel ratio of the mixture that is supplied to the combustion 
chamber is created by the volume of the intake air and the fuel that is metered by the jet used in the 
respective carburetor....

FEATURES
1-3
ET2C01019
FI SYSTEM
The fuel pump delivers fuel to the fuel injector via the fuel filter. The pressure regulator maintains the 
fuel pressure that is applied to the fuel injector at only 324 kPa (3.24 kg/cm², 46.1 psi). Accordingly, 
when the energizing signal from the ECU energizes the fuel injector, the fuel passage opens, causing 
the fuel to be injected into the intake manifold only during the time the passage remains open. There-
fore, the longer the length of time the fuel injector is...

FEATURES
1-4
ET2C01026
YCC-T (Yamaha Chip Controlled Throttle)
Mechanism characteristics
Yamaha developed the YCC-T system employing the most advanced electronic control technologies. 
Electronic control throttle systems have been used on automobiles, but Yamaha has developed a fast-
er, more compact system specifically for the needs of a sports motorcycle. The Yamaha-developed 
system has a high-speed calculating capacity that produces computations of running conditions every 
1/1000th of a second.
The...

FEATURES
1-5
YCC-T system outline
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1. Throttle position sensor (for throttle cable 
pulley)
2. Throttle servo motor
3. Throttle position sensor (for throttle valves)
4. ECU (engine control unit)
5. ETV main CPU (32 bit)
6. ETV sub CPU (16 bit)
7. FI CPU (32 bit)
8. Throttle servo motor driver
9. Throttle servo motor driver operation 
sensing/shut off circuit
10. Throttle servo motor driver operation sensing 
feedback/emergency stop
11. Emergency stop
12. Engine...

FEATURES
1-6
YCC-T control outline
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1. Throttle position sensor (for throttle cable 
pulley)
2. Throttle position sensor (for throttle valves)
3. Crankshaft position sensor
4. Speed sensor
5. Coolant temperature sensor
6. Neutral switch
7. Atmospheric pressure sensor
8. Throttle position (for throttle cable pulley) (two 
signals)
9. Throttle position (for throttle valves) (two 
signals)
10. Engine revolution
11. Vehicle speed
12. Coolant temperature
13....

FEATURES
1-7
ET2C01020
INSTRUMENT FUNCTIONS
Multi-function meter unit
WARNING
EW2C01003
Be sure to stop the vehicle before making 
any setting changes to the multi-function 
meter unit.
The multi-function meter unit is equipped with 
the following:
a speedometer (which shows the riding speed)
a tachometer (which shows engine speed)
an odometer (which shows the total distance 
traveled)
two tripmeters (which show the distance trav-
eled since they were last set to zero)
a fuel reserve tripmeter...

FEATURES
1-8
To set the clock:
1. Push the “SELECT” button and “RESET” but-
ton together for at least two seconds.
2. When the hour digits start flashing, push the 
“RESET” button to set the hours.
3. Push the “SELECT” button, and the minute 
digits will start flashing.
4. Push the “RESET” button to set the minutes.
5. Push the “SELECT” button and then release 
it to start the clock.
Odometer, tripmeter, and stopwatch modes
Push the “SELECT” button to switch the display 
between the odometer mode “ODO”,...

FEATURES
1-9
CAUTION:
EC2C01021
Do not operate the engine if it is overheated.
Air intake temperature display
The air intake temperature display indicates the 
temperature of the air drawn into the air filter 
case. Push the “RESET” button to switch the 
coolant temperature display to the air intake 
temperature display.
NOTE:
Even if the air intake temperature is set to be 
displayed, the coolant temperature warning 
light comes on when the engine overheats.
When the key is turned to “ON”, the coolant...

FEATURES
1-10
To adjust the brightness of the multi-function 
meter displays and tachometer:
1. Turn the key to “OFF”.
2. Push and hold the “SELECT” button.
3. Turn the key to “ON”, and then release the 
“SELECT” button after five seconds.
4. Push the “RESET” button to select the de-
sired brightness level.
5. Push the “SELECT” button to confirm the se-
lected brightness level. The control mode 
changes to the shift timing indicator light ac-
tivity function.
To set the shift timing indicator light...

IMPORTANT INFORMATION
1-11
EAS20180
IMPORTANT INFORMATION
EAS20190
PREPARATION FOR REMOVAL AND 
DISASSEMBLY
1. Before removal and disassembly, remove all 
dirt, mud, dust and foreign material.
2. Use only the proper tools and cleaning equip-
ment.
Refer to “SPECIAL TOOLS” on page 1-14.
3. When disassembling, always keep mated 
parts together. This includes gears, cylinders, 
pistons and other parts that have been “mat-
ed” through normal wear. Mated parts must 
always be reused or replaced as an assem-...