FEATURES
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 250 kPa (2.50 kg/cm², 35.6 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. Therefore, the longer the
length of time the fuel injector is energized (injection duration), the greater the volume of fuel that is
supplied. Conversely, the shorter the length of time the fuel injector is energized (injection duration), the
lesser the volume of fuel that is supplied.
The injection duration and the injection timing are controlled by the ECU. Signals that are input from the
throttle position sensor, crankshaft position sensor, intake air pressure sensor, intake air temperature
sensor, lean angle sensor and coolant temperature sensor enable the ECU to determine the injection
duration. The injection timing is determined through the signals from the crankshaft position sensor. As a
result, the volume of fuel that is required by the engine can be supplied at all times in accordance with the
driving conditions.
1. Fuel pump
2. Fuel injector
3. Ignition coil
4. Coolant temperature sensor
5. ECU (engine control unit)
6. Lean angle sensor
7. Crankshaft position sensor
8. FID (fast idle solenoid)
9. Air filter case
10. Throttle body
11. Throttle body sensor assembly
12. Intake air temperature sensor
13. Throttle position sensor
14. Intake air pressure sensor
A. Fuel system
B. Air system
C. Control system
12
14
10
9
1
2
3
4
6
5
7
8
11
13
The multi-function display is equipped with the
following:
• a speedometer (which shows the riding speed)
• an odometer (which shows the total distance
traveled)
• two tripmeters (which show the distance
traveled since they were last set to zero)
• a fuel reserve tripmeter (which shows the
distance traveled since the fuel level warning
light came on)
• a fuel meter
1. Multi-function display
2. “RESET/SELECT” button
Odometer and tripmeter modes
(
)
“
/
“
“
1”
“
2”
:
→
1 →
2 →
1.
,
“ -
,
.
,
“
/
:
-
→
1 →
2 →
→ -
A brief push less than one second on the
RESET SELECT” button switches the display
between the odometer mode
ODO” and the
tripmeter modes TRIP
and TRIP
in the
following order
ODO TRIP
TRIP
ODO
When approximately
9 L of fuel remains in the
fuel tank the odometer display will automatically
change to the fuel reserve tripmeter mode
F
TRIP” and start counting the distance traveled
from that point and the last segment of the fuel
meter will start flashing In that case pushing the
RESET SELECT” button switches the display
between the various tripmeter and odometer
modes in the following order
F TRIP TRIP
TRIP
ODO F TRIP
1-3
1-4
Tripmeter will reset itself automatically and the
display will return to the prior mode after refueling
and traveling 5 km (3 mi).
The fuel meter indicates the amount of fuel in the
fuel tank. The display segments of the fuel meter
disappear towards “E” (Empty) as the fuel level
decreases. When the last fuel meter segment
starts flashing, refuel as soon as possible.
1. Fuel meter
Summary of Contents for YZF-R15
Page 1: ...2008 SERVICE MANUAL YZF R15 20P F8197 E0 ...
Page 33: ...2 14 ELECTRICAL SPECIFICATIONS Coil resistance 54 0 66 0 Fuse 20 0A Ω Fuse ...
Page 46: ...2 27 LUBRICATION POINTS AND LUBRICANT TYPES LUBRICATION DIAGRAMS A 1 2 3 4 5 6 7 ...
Page 48: ...2 29 LUBRICATION POINTS AND LUBRICANT TYPES 1 2 3 4 ...
Page 49: ...2 30 LUBRICATION POINTS AND LUBRICANT TYPES 1 Camshaft 2 Crankshaft 3 Main axle 4 Drive axle ...
Page 50: ...2 31 COOLING SYSTEM DIAGRAMS COOLING SYSTEM DIAGRAMS 1 2 3 4 1 5 7 6 4 ...
Page 52: ...2 33 CABLE ROUTING CABLE ROUTING 1 5 2 3 6 4 8 7 ...
Page 54: ...2 35 CABLE ROUTING A A B B C C A A C C B B A B C 1 2 3 4 5 4 5 6 6 7 8 9 10 11 10 11 12 12 ...
Page 56: ...2 37 CABLE ROUTING 1 2 5 4 3 ...
Page 60: ...2 41 CABLE ROUTING A A B C D E 1 2 3 4 5 6 7 8 9 10 A ...
Page 121: ...4 24 FRONT BRAKE Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM on page 3 18 ...
Page 249: ...7 8 THROTTLE BODY ...
Page 250: ...7 9 AIR INDUCTION SYSTEM AIR INDUCTION SYSTEM 1 2 5 4 5 6 3 2 1 6 4 3 ...
Page 257: ......
Page 269: ...8 12 CHARGING SYSTEM 1 AC magneto 2 Rectifier regulator 3 Battery 42 Fuse ...
Page 271: ...8 14 CHARGING SYSTEM ...
Page 275: ...8 18 LIGHTING SYSTEM ...
Page 285: ...8 28 COOLING SYSTEM ...
Page 311: ...8 54 FUEL PUMP SYSTEM ...