FEATURES
1-2
EAS20170
FEATURES
EAS3D81037
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.
1
2
3
4
5 6 7 8 9 10 11 12 13
14
15
16
17
7
18
1. Air temperature sensor
2. Engine trouble warning light
3. Intake air pressure sensor
4. Rear cylinder ignition coil
5. Front cylinder ignition coil
6. Throttle position sensor
7. Spark plug
8. Speed sensor
9. Lean angle sensor
10. Relay unit (fuel pump relay)
11. Fuel pump
12. ECU (engine control unit)
13. O
2
sensor
14. Rear cylinder injector
15. ISC (idle speed control) unit
16. Crankshaft position sensor
17. Front cylinder injector
18. Coolant temperature sensor
Summary of Contents for Star XVS13AA(C) 2011
Page 1: ...2011 SERVICE MANUAL XVS13AA C XVS13CTA C XVS13CA C LIT 11616 24 48 3D8 28197 13 ...
Page 6: ......
Page 8: ......
Page 59: ...TIGHTENING TORQUES 2 32 2 1 ...
Page 63: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 36 ...
Page 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 EAS20410 LUBRICATION DIAGRAMS A A 1 2 2 3 A A ...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 41 1 2 ...
Page 69: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 42 1 Camshaft 2 Crankshaft ...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 43 1 2 ...
Page 71: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 44 1 Oil delivery pipe 1 2 Timing chain tensioner ...
Page 72: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 45 1 2 3 4 5 6 ...
Page 74: ...COOLING SYSTEM DIAGRAMS 2 47 EAS20420 COOLING SYSTEM DIAGRAMS A A A A 2 1 4 3 5 6 ...
Page 76: ...COOLING SYSTEM DIAGRAMS 2 49 A B B A 4 3 3 1 2 2 A A B B ...
Page 100: ...CABLE ROUTING for XVS13AA C XVS13CTA C 2 73 A D B C 1 2 3 4 5 6 7 8 9 A B 10 11 12 13 14 A B ...
Page 122: ...CABLE ROUTING for XVS13CA C 2 95 C B C B A B A A C B E D 5 6 1 2 3 4 1 2 3 7 5 6 C C ...
Page 126: ...CABLE ROUTING for XVS13CA C 2 99 E A B C D C C A B A B C C 1 1 5 3 2 4 ...
Page 128: ...CABLE ROUTING for XVS13CA C 2 101 A H G B C D E F 2 J I 1 5 2 3 4 A A 7 6 ...
Page 134: ...CABLE ROUTING for XVS13CA C 2 107 ...
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Page 374: ...TRANSMISSION 5 95 ...
Page 388: ...WATER PUMP 6 13 ...
Page 407: ......
Page 415: ...IGNITION SYSTEM 8 8 ...
Page 425: ...CHARGING SYSTEM 8 18 1 AC magneto 2 Rectifier regulator 3 Main fuse 6 Battery ...
Page 427: ...CHARGING SYSTEM 8 20 ...
Page 445: ...SIGNALING SYSTEM 8 38 ...
Page 489: ...FUEL INJECTION SYSTEM 8 82 ...
Page 496: ...ELECTRICAL COMPONENTS 8 89 EAS27970 ELECTRICAL COMPONENTS 1 5 4 6 7 9 8 10 11 12 13 15 2 3 14 ...
Page 498: ...ELECTRICAL COMPONENTS 8 91 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ...
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Page 532: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...