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2001
( )
FJR1300 N
5JW1-AE1
SERVICEMANUAL
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FJR1300R 5JW9-AE1 SERVICE MANUAL
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EAS00002 NOTICE This manual was produced by the Yamaha Motor Company, Ltd. primarily for use by Yamaha deal- ers and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in one manual. Therefore, anyone who uses this book to perform maintenance and repairs on Yamaha vehicles should have a basic understanding of mechanics and the techniques to repair these types of vehicles. Repair and maintenance work attempted by anyone without this knowledge is likely to re
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EAS00007 HOW TO USE THIS MANUAL This manual is intended as a handy, easy-to-read reference book for the mechanic. Comprehensive explanations of all installation, removal, disassembly, assembly, repair and check procedures are laid out with the individual steps in sequential order. 1 The manual is divided into chapters. An abbreviation and symbol in the upper right corner of each page indicate the current chapter. Refer to “SYMBOLS”. 2 Each chapter is divided into sections. The current section
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. T R . EAS00008 12 SYMBOLS The following symbols are not relevant to GEN every vehicle. SPEC INFO Symbols 1 to 9 indicate the subject of each chapter. 34 1 General information CHK 2 Specifications CHAS ADJ 3 Periodic checks and adjustments 4 Chassis 56 5 Engine 6 Cooling system 7 Fuel injection system ENG COOL 8 Electrical system 9 Troubleshooting 78 –+ FI ELEC Symbols 0 to G indicate the following. 90 0 Serviceable with engine mounted TRBL A Filling fluid B Lubricant SHTG C Specia
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EAS00012 TABLE OF CONTENTS GENERAL INFORMATION GEN INFO 1 SPECIFICATIONS SPEC 2 PERIODIC CHECKS AND CHK ADJUSTMENTS 3 ADJ CHASSIS CHAS 4 ENGINE ENG 5 COOLING SYSTEM COOL 6 FUEL INJECTION SYSTEM FI 7 –+ ELECTRICAL SYSTEM ELEC 8 TROUBLESHOOTING TRBL SHTG 9
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GEN 1 INFO
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GEN INFO CHAPTER 1 GENERAL INFORMATION MOTORCYCLE IDENTIFICATION..................................................................1-1 VEHICLE IDENTIFICATION NUMBER .....................................................1-1 MODEL CODE ..........................................................................................1-1 FEATURES......................................................................................................1-2 OUTLINE....................................................
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GEN INFO
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GEN MOTORCYCLE IDENTIFICATION INFO EAS00014 GENERAL INFORMATION MOTORCYCLE IDENTIFICATION EAS00017 VEHICLE IDENTIFICATION NUMBER The vehicle identification number 1 is stamped into the right side of the steering head pipe. EAS00018 MODEL CODE The model code label 1 is affixed to the frame. This information will be needed to order spare parts. 1 - 1
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GEN FEATURES INFO FEATURES OUTLINE 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 com- bustion chamber is created by the volume of the intake air and the fuel that is metered by the jet that is used in the respective chamber. Despite the same vo
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GEN FEATURES INFO FI SYSTEM The fuel pump delivers fuel to the injector via the fuel filter. The pressure regulator maintains the 2 fuel pressure that is applied to the injector at only 2.55 kg/cm higher than the intake manifold pres- sure. Accordingly, when the energizing signal from the ECU energizes the injector, the fuel passage opens, causing the fuel to be injected into the intake manifold only during the time the passage remains open. Therefore, the longer the length of time the injector
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GEN FEATURES INFO Fuel control block The fuel control block consists of the following main components: Component Function Control block ECU Total FI system control Throttle body Air volume control Pressure regulator Fuel pressure detection Sensor block Intake air pressure sensor Intake air pressure detection Atmospheric pressure sensor Atmospheric pressure detection Coolant temperature sensor Coolant temperature detection Intake temperature sensor Intake temperature detection Throttle position
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GEN FEATURES INFO COMPONENTS ECU (Electronic Control Unit) The ECU is mounted underneath the seat, below the toolbox. The main functions of the ECU are ignition control, fuel control, self-diagnosis, and load control. • ECU’s internal construction and functions The main components and functions of the ECU can be broadly divided into the following four items: A. Power supply circuit The power supply circuit obtains power from the battery (12 V) to supply the power (5 V) that is required for opera
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GEN FEATURES INFO • Ignition control The ignition control function of the ECU controls the ignition timing and the duration of ignition energizing. The ignition timing control uses the signals from the throttle position sensor (to detect the angle of the throttle), and the crankshaft position sensor and speed sensor (to detect the speed of the engine). This control establishes an ignition timing that suits the operating condition of the engine through compensations made to the basic ignition tim
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GEN FEATURES INFO Fuel pump The fuel pump, which is mounted in the fuel tank, draws the fuel directly from the tank and pumps it to the injector. A filter that is provided in the fuel pump prevents any debris in the fuel tank from entering the fuel system downstream of the pump. The pump consists of a pump unit, electric motor, filter, and valves. The pump unit is a Wesco type rotary pump that is connected to the motor shaft. A relief valve is provided to prevent the fuel pressure from rising ab
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GEN FEATURES INFO 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 th
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GEN FEATURES INFO Fuel injector Upon receiving injection signals from the ECU, the fuel injector injects fuel. In the normal state, the core is pressed downward by the force of the spring, as illustrated. The needle that is integrated with the bottom of the core keeps the fuel passage closed. When the current flows to the coil in accordance with the signal from the ECU, the core is drawn upward, allowing the flange that is integrated with the needle to move to the spacer. Since the dis- tance of
