FEATURES
1-2
EAS20170
FEATURES
EAS5S71022
OUTLINE OF THE FI SYSTEM
The main function of a fuel supply system is to provide fuel to the combustion chamber at the opti-
mum air-fuel ratio in accordance with the engine operating conditions and the atmospheric tempera-
ture. 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
conditions, 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 con-
ditions of the engine.
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 man-
ner. To accommodate 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. Air temperature sensor
2. Intake air pressure sensor
3. Engine trouble warning light
4. Fuel pump
5. Front cylinder injector
6. Rear cylinder injector
7. Throttle position sensor
8. Spark plug
9. Speed sensor
10.Relay unit (fuel pump relay)
11.ECU (engine control unit)
12.O
2
sensor
13.Lean angle sensor
14.ISC (idle speed control) unit
15.Crankshaft position sensor
16.Rear cylinder ignition coil
17.Front cylinder ignition coil
18.Engine temperature sensor
Содержание Star XVS950A 2009
Страница 1: ...SERVICE MANUAL XVS950A Y 2009 26P 28197 E0 ...
Страница 6: ......
Страница 8: ......
Страница 47: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 24 ...
Страница 50: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 EAS20410 LUBRICATION DIAGRAMS ...
Страница 52: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 ...
Страница 53: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 30 1 Camshaft 2 Crankshaft ...
Страница 54: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31 ...
Страница 55: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 32 1 Oil drain bolt 2 Crankshaft ...
Страница 56: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 ...
Страница 58: ...CABLE ROUTING 2 35 EAS20430 CABLE ROUTING ...
Страница 60: ...CABLE ROUTING 2 37 ...
Страница 62: ...CABLE ROUTING 2 39 ...
Страница 64: ...CABLE ROUTING 2 41 ...
Страница 66: ...CABLE ROUTING 2 43 ...
Страница 68: ...CABLE ROUTING 2 45 ...
Страница 70: ...CABLE ROUTING 2 47 ...
Страница 72: ...CABLE ROUTING 2 49 ...
Страница 74: ...CABLE ROUTING 2 51 ...
Страница 76: ...CABLE ROUTING 2 53 ...
Страница 78: ...CABLE ROUTING 2 55 ...
Страница 80: ...CABLE ROUTING 2 57 ...
Страница 82: ...CABLE ROUTING 2 59 ...
Страница 84: ...CABLE ROUTING 2 61 ...
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Страница 118: ...PERIODIC MAINTENANCE 3 31 ...
Страница 121: ......
Страница 191: ...INSTALLING THE SHIFT FORKS AND SHIFT DRUM ASSEMBLY 5 78 ...
Страница 284: ...THROTTLE BODIES 6 13 ...
Страница 287: ......
Страница 288: ...IGNITION SYSTEM 7 1 EAS27090 IGNITION SYSTEM EAS27110 CIRCUIT DIAGRAM ...
Страница 294: ...ELECTRIC STARTING SYSTEM 7 7 EAS27160 ELECTRIC STARTING SYSTEM EAS27170 CIRCUIT DIAGRAM ...
Страница 300: ...CHARGING SYSTEM 7 13 EAS27200 CHARGING SYSTEM EAS27210 CIRCUIT DIAGRAM ...
Страница 301: ...CHARGING SYSTEM 7 14 2 AC magneto 3 Rectifier regulator 4 Main fuse 5 Battery ...
Страница 303: ...CHARGING SYSTEM 7 16 ...
Страница 304: ...LIGHTING SYSTEM 7 17 EAS27240 LIGHTING SYSTEM EAS27250 CIRCUIT DIAGRAM ...
Страница 308: ...SIGNALING SYSTEM 7 21 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM ...
Страница 314: ...FUEL INJECTION SYSTEM 7 27 EAS27330 FUEL INJECTION SYSTEM EAS27340 CIRCUIT DIAGRAM ...
Страница 318: ...FUEL INJECTION SYSTEM 7 31 EAS5S71040 TROUBLE SHOOTING CHART ...
Страница 356: ...FUEL PUMP SYSTEM 7 69 EAS27550 FUEL PUMP SYSTEM EAS27560 CIRCUIT DIAGRAM ...
Страница 359: ...FUEL PUMP SYSTEM 7 72 ...
Страница 360: ...IMMOBILIZER SYSTEM 7 73 EAS27640 IMMOBILIZER SYSTEM EAS27650 CIRCUIT DIAGRAM ...
Страница 369: ...IMMOBILIZER SYSTEM 7 82 ...
Страница 370: ...ELECTRICAL COMPONENTS 7 83 EAS27970 ELECTRICAL COMPONENTS ...
Страница 372: ...ELECTRICAL COMPONENTS 7 85 ...
Страница 374: ...ELECTRICAL COMPONENTS 7 87 EAS27980 CHECKING THE SWITCHES ...
Страница 399: ......
Страница 400: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...