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.
Despite the same volume of intake air, the fuel volume requirement varies by the engine operating con-
ditions, such as acceleration, deceleration, or operating under a heavy load. Carburetors that meter the
fuel through the use of jets have been provided with various auxiliary devices, so that an optimum air-
fuel ratio can be achieved to accommodate the constant changes in the operating conditions of the en-
gine.
As the requirements for the engine to deliver more performance and cleaner exhaust gases increase,
it becomes necessary to control the air-fuel ratio in a more precise and finely tuned manner. To accom-
modate this need, this model has adopted an electronically controlled fuel injection (FI) system, in place
of the conventional carburetor system. This system can achieve an optimum air-fuel ratio required by
the engine at all times by using a microprocessor that regulates the fuel injection volume according to
the engine operating conditions detected by various sensors.
The adoption of the FI system has resulted in a highly precise fuel supply, improved engine response,
better fuel economy, and reduced exhaust emissions. Furthermore, the air induction system (AI sys-
tem) has been placed under computer control together with the FI system in order to realize cleaner
exhaust gases.
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17
10
1. Relay unit (fuel pump relay)
2. Lean angle sensor
3. Engine trouble warning light
4. Ignition coil
5. Cylinder identification sensor
6. Fuel pump
7. Air induction system solenoid
8. Intake air pressure sensor
9. Injector
10. Intake air temperature sensor
11. Rear wheel sensor
12. ECU (engine control unit)
13. O
2
sensor
14. Throttle position sensor
15. Crankshaft position sensor
16. Spark plug
17. Coolant temperature sensor
Summary of Contents for FJR13AEV(C)
Page 1: ...SERVICE MANUAL FJR13AV C FJR13AEV C LIT 11616 19 83 3P6 28197 10 ...
Page 6: ......
Page 8: ......
Page 79: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 30 ...
Page 82: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 EAS20410 LUBRICATION DIAGRAMS 5 6 7 1 2 3 4 ...
Page 84: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 1 3 2 ...
Page 85: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 36 1 Main axle 2 Drive axle 3 Oil delivery pipe 1 ...
Page 86: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 6 5 4 3 2 1 ...
Page 88: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 1 2 3 4 5 6 7 8 9 ...
Page 90: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 41 4 5 3 2 1 9 8 6 7 ...
Page 94: ...COOLING SYSTEM DIAGRAMS 2 45 A A 7 1 2 3 4 5 5 7 8 6 8 9 10 11 12 ...
Page 100: ...CABLE ROUTING FJR13A 2 51 A B C D E 1 1 2 3 4 5 6 7 8 9 11 10 12 ...
Page 102: ...CABLE ROUTING FJR13A 2 53 A B C D 1 2 3 4 6 5 7 8 9 10 11 12 ...
Page 110: ...CABLE ROUTING FJR13A 2 61 D A B B C E 1 2 3 4 ...
Page 120: ...CABLE ROUTING FJR13AE 2 71 B C 1 A D E G 1 2 3 4 5 6 7 8 9 14 13 10 11 12 15 F ...
Page 122: ...CABLE ROUTING FJR13AE 2 73 A B C D E 1 2 3 4 6 5 8 7 9 11 10 12 13 ...
Page 130: ...CABLE ROUTING FJR13AE 2 81 D B C A E E F I 3 4 5 2 1 6 H G ...
Page 136: ...CABLE ROUTING FJR13AE 2 87 ...
Page 139: ......
Page 198: ...GENERAL CHASSIS 4 11 b a 1 2 ...
Page 298: ...SHAFT DRIVE 4 111 ...
Page 321: ...CAMSHAFTS 5 20 ...
Page 434: ...BALANCERS 5 133 ...
Page 450: ...WATER PUMP 6 15 ...
Page 461: ...THROTTLE BODIES 7 10 ...
Page 462: ...AIR INDUCTION SYSTEM 7 11 EAS27040 AIR INDUCTION SYSTEM 1 2 3 4 5 1 1 1 1 2 2 5 2 3 3 4 7 8 6 ...
Page 471: ......
Page 483: ...IGNITION SYSTEM 8 12 ...
Page 499: ...ELECTRIC STARTING SYSTEM 8 28 ...
Page 501: ...CHARGING SYSTEM 8 30 2 Rectifier regulator 3 AC magneto 7 Main fuse 8 Battery ...
Page 503: ...CHARGING SYSTEM 8 32 ...
Page 527: ...COOLING SYSTEM 8 56 ...
Page 571: ...FUEL INJECTION SYSTEM 8 100 ...
Page 577: ...FUEL PUMP SYSTEM 8 106 ...
Page 583: ...WINDSHIELD DRIVE SYSTEM 8 112 ...
Page 589: ...ACCESSORY BOX SYSTEM 8 118 ...
Page 599: ...ABS ANTI LOCK BRAKE SYSTEM 8 128 ...
Page 629: ...ABS ANTI LOCK BRAKE SYSTEM 8 158 ...
Page 673: ...YCC S Yamaha Chip Controlled Shift SYSTEM FJR13AE only 8 202 ...
Page 676: ...ELECTRICAL COMPONENTS 8 205 FJR13A 1 17 16 18 19 3 2 4 5 6 7 8 9 10 11 12 13 14 15 ...
Page 678: ...ELECTRICAL COMPONENTS 8 207 FJR13AE 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 16 18 19 20 17 ...
Page 680: ...ELECTRICAL COMPONENTS 8 209 FJR13AE 1 19 18 17 20 21 3 2 4 5 6 8 7 9 10 11 12 13 14 15 16 ...
Page 717: ......
Page 718: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...