1 - 8
GEN
INFO
FEATURES
Pressure regulator
It regulates the fuel pressure that is applied to the injectors that are provided in the cylinders in order
to maintain a constant pressure difference with the pressure in the intake manifold.
The fuel that is delivered by the fuel pump fills the fuel chamber through the fuel inlet of the regulator
and exerts pressure on the diaphragm in the direction for opening the valve.
A spring that is provided in the spring chamber exerts pressure on the diaphragm in the direction for
closing the valve, in contrast to the pressure of the fuel. Thus, the valve cannot open unless the fuel
pressure overcomes the spring force.
An intake vacuum is applied to the spring chamber via a pipe. When the pressure of the fuel
exceeds the sum of the intake vacuum and the spring force, the valve that is integrated with the dia-
phragm opens, allowing the fuel to return from the fuel outlet to the fuel tank, via the fuel return
hose.
As a result, because the intake vacuum fluctuates in accordance with the changes in the operating
conditions in contrast to the constant volume of fuel supplied by the pump, the valve opening/clos-
ing pressure also changes to regulate the return fuel volume. Thus, the difference between the fuel
pressure and the intake manifold pressure remains constant at a prescribed pressure.
1
Spring chamber
2
Spring
3
Diaphragm
4
Fuel inlet
5
Fuel outlet
6
Fuel chamber
7
Valve
8
Intake manifold vac-
uum pressure
È
Spring pressure
É
Fuel pressure
Ê
Vacuum pressure
È
É
Ê
1
2
3
4
6
7
8
5
Содержание FJR1300
Страница 1: ...LIT 11616 16 18 5JW 28197 10 FJR1300R FJR1300RC SERVICE MANUAL ...
Страница 6: ......
Страница 82: ...2 22 SPEC TIGHTENING TORQUES Cylinder head tightening sequence Crankcase tightening sequence ...
Страница 89: ...2 29 SPEC 1 Crankshaft 2 Main axle 3 Drive axle OIL FLOW DIAGRAMS ...
Страница 90: ...2 30 SPEC 1 Oil nozzle 2 Main gallery bolt 3 Crankshaft OIL FLOW DIAGRAMS ...
Страница 91: ...2 31 SPEC 1 Main axle 2 Drive axle 3 Oil delivery pipe OIL FLOW DIAGRAMS ...
Страница 92: ...2 32 SPEC 1 Exhaust camshaft 2 Oil check bolt 3 Intake camshaft OIL FLOW DIAGRAMS ...
Страница 93: ...2 33 SPEC 1 Oil check bolt 2 Crankshaft 3 Oil cooler 4 Oil pump 5 Oil strainer 6 Oil pipe OIL FLOW DIAGRAMS ...
Страница 94: ...2 34 SPEC 1 Crank pin 2 Crankshaft OIL FLOW DIAGRAMS ...
Страница 95: ...2 35 SPEC 1 Rear balancer 2 Oil delivery pipe 3 Crankshaft 4 Front balancer 5 Crank pin OIL FLOW DIAGRAMS ...
Страница 97: ...2 37 SPEC 1 Main axle 2 Drive axle 3 Middle drive shaft OIL FLOW DIAGRAMS ...
Страница 98: ...2 38 SPEC COOLING SYSTEM DIAGRAMS 1 Radiator COOLING SYSTEM DIAGRAMS ...
Страница 99: ...2 39 SPEC 1 Water jacket joint 2 Oil cooler COOLING SYSTEM DIAGRAMS ...
Страница 100: ...2 40 SPEC 1 Thermostat assembly 2 Coolant reservoir 3 Radiator 4 Oil cooler COOLING SYSTEM DIAGRAMS ...
Страница 101: ...2 41 SPEC 1 Coolant reservoir 2 Radiator 3 Water pump COOLING SYSTEM DIAGRAMS ...
Страница 107: ...2 47 SPEC CABLE ROUTING 1 Tail brake light lead ...
Страница 196: ...3 80 CHK ADJ ADJUSTING THE HEADLIGHT BEAMS ...
Страница 288: ...4 92 CHAS 3 Install bearing 1 to the swingarm Installed depth a 4 0 mm 0 16 in SWINGARM ...
Страница 531: ...8 35 ELEC LIGHTING SYSTEM ...
Страница 570: ......
Страница 571: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...