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
Summary of Contents for FJR1300N 2001
Page 1: ...FJR1300 N 5JW1 AE1 SERVICEMANUAL 2001 ...
Page 2: ...FJR1300R 5JW9 AE1 SERVICE MANUAL 5JW 28197 20 ...
Page 3: ......
Page 8: ......
Page 9: ...GEN INFO 1 ...
Page 11: ...GEN INFO ...
Page 54: ...SPEC 2 ...
Page 56: ...SPEC ...
Page 78: ...2 22 SPEC TIGHTENING TORQUES Cylinder head tightening sequence Crankcase tightening sequence ...
Page 85: ...2 29 SPEC 1 Crankshaft 2 Main axle 3 Drive axle OIL FLOW DIAGRAMS ...
Page 86: ...2 30 SPEC 1 Oil nozzle 2 Main gallery bolt 3 Crankshaft OIL FLOW DIAGRAMS ...
Page 87: ...2 31 SPEC 1 Main axle 2 Drive axle 3 Oil delivery pipe OIL FLOW DIAGRAMS ...
Page 88: ...2 32 SPEC 1 Exhaust camshaft 2 Oil check bolt 3 Intake camshaft OIL FLOW DIAGRAMS ...
Page 90: ...2 34 SPEC 1 Crank pin 2 Crankshaft OIL FLOW DIAGRAMS ...
Page 93: ...2 37 SPEC 1 Main axle 2 Drive axle 3 Middle drive shaft OIL FLOW DIAGRAMS ...
Page 94: ...2 38 SPEC COOLING SYSTEM DIAGRAMS 1 Radiator COOLING SYSTEM DIAGRAMS ...
Page 95: ...2 39 SPEC 1 Water jacket joint 2 Oil cooler COOLING SYSTEM DIAGRAMS ...
Page 97: ...2 41 SPEC 1 Coolant reservoir 2 Radiator 3 Water pump COOLING SYSTEM DIAGRAMS ...
Page 103: ...2 47 SPEC CABLE ROUTING 1 Tail brake light lead ...
Page 112: ......
Page 113: ...CHK ADJ 3 ...
Page 199: ......
Page 200: ...CHAS 4 ...
Page 293: ...4 91 CHAS 3 Install bearing 1 to the swingarm Installed depth a 4 0 mm SWINGARM ...
Page 315: ...ENG 5 ...
Page 319: ...ENG ...
Page 342: ...5 23 ENG CYLINDER HEAD 4 Tighten cylinder head bolts M6 1 T R 12 Nm 1 2 m kg ...
Page 445: ......
Page 446: ...COOL 6 ...
Page 448: ...COOL ...
Page 467: ...FI 7 ...
Page 469: ...FI ...
Page 514: ...ELEC 8 ...
Page 520: ...8 4 ELEC CHECKING SWITCH CONTINUITY ...
Page 552: ...8 36 ELEC LIGHTING SYSTEM ...
Page 583: ...TRBL SHTG 9 ...
Page 593: ......