1 - 3
GEN
INFO
FEATURES
FI SYSTEM
The fuel pump delivers fuel to the injector via the fuel filter. The pressure regulator maintains the
fuel pressure that is applied to the injector at only 2.55 kg/cm
2
higher than the intake manifold pres-
sure. Accordingly, when the energizing signal from the ECU energizes the 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 injector is energized (injection duration),
the greater the volume of fuel that is supplied. Conversely, the shorter the length of time the 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, atmospheric
pressure sensor, intake temperature sensor, engine temperature sensor, and oil temperature sen-
sor enable the ECU to determine the injection duration. The injection timing is determined through
the signals from the crankshaft position sensor and the cylinder identification 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
Pressure regulator
3
Fuel injector
4
Throttle body
5
Intake temperature sensor
6
Throttle position sensor
7
Intake air pressure sensor
8
ECU
9
Atmospheric pressure sensor
0
Engine temperature sensor
A
Cylinder identification sensor
B
Crankshaft position sensor
È
Fuel system
É
Air system
Ê
Control system
#2 #1
È
Ê
É
1
9
7
5
8
B
0
6
4
3
A
2
Illustration is for reference only.
Содержание XV1700P
Страница 1: ...XV1700P XV1700PC SERVICEMANUAL LIT 11616 15 37 5PX 28197 10 ...
Страница 87: ...2 31 SPEC ENGINE OIL FLOW DIAGRAMS 1 Valve lifter 2 Push rod 3 Rocker arm shaft 4 Crankshaft 3 2 1 4 3 ...
Страница 88: ...2 32 SPEC ENGINE OIL FLOW DIAGRAMS 1 Engine oil pump 2 Oil strainer 3 Engine oil drain bolt engine 3 2 1 1 ...
Страница 91: ...2 35 SPEC TRANSFER GEAR OIL FLOW DIAGRAMS 1 Transfer gear oil pump 2 Middle driven shaft 1 2 ...
Страница 245: ...4 68 CHAS FRONT FORK 3 Adjust spring preload Refer to ADJUSTING THE FRONT FORK LEGS in chapter 3 ...
Страница 306: ...5 38 ENG CYLINDER HEADS 6 Install washer engine temperature sensor 1 T R 20 Nm 2 0 m kg 14 ft lb ...
Страница 393: ...5 125 ENG TRANSMISSION 2 Check transmission Rough movement Repair NOTE _ Oil each gear shaft and bearing thoroughly ...
Страница 513: ......
Страница 514: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...