2003 SUZUKI SV 650 FUEL SYSTEM AND THROTTLE BODY SERVICE MANUAL

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Filed Under (Suzuki) by admin on 26-02-2011

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FUEL PUMP The electric fuel pump is mounted at the bottom of the fuel tank, which consists of the armature, magnet, impeller, brush, check valve and relief valve . The ECM controls its ON/OFF operation as controlled under the FUEL PUMP CONTROL SYSTEM . When electrical energy is supplied to the fuel pump, the motor in the pump runs and together with the impel- ler . This causes a pressure difference to occur on both sides of the impeller as there are many grooves around it . Then the fuel is drawn through the inlet port, and with its pressure increased, it is discharged through the outlet port . The fuel pump has a check valve to keep some pressure in the fuel feed hose even when the fuel pump is stopped . Also, the relief valve is equipped in the fuel pump, which releases pressurized fuel to the fuel tank when the outlet of the fuel pressure has increased up to 450 -600 kPa (4.5- 6.0 kgf/cm2,64- 85 psi) . Relief valve Brush , ∎ I,’ Check valve Magnet L Armature When the impeller is driven by the motor, pressure differential occurs between the front part and the rear part of the blade groove as viewed in angular direction due to fluid friction . This process continuously takes place causing fuel pressure to be built up . The pressurized fuel is then let out from the pump chamber and discharged through the motor section and the check valve . FUEL SYSTEM AND THROTTLE BODY 5- 3 Inlet port I I Impeller 5-4 FUEL SYSTEM AND THROTTLE BODY FUEL PRESSURE REGULATOR The fuel pressure regulator consists of the spring and valve . It keeps absolute fuel pressure of 300 kPa (3.0 kgf/cm2,43 psi) to be applied to the injector at all times . When the fuel pressure rises more than 300 kPa (3 .0 kgf/cm2, 43 psi), the fuel pushes the valve in the regulator open and excess fuel returns to the fuel tank . 90 Spring 02 Valve FUEL INJECTOR The fuel injector consists of the solenoid coil, plunger, needle valve and filter . It is an electromagnetic type injection nozzle which injects fuel in the throttle body according to the signal from the ECM. When the solenoid coil of the injector is energized by the ECM, it becomes an electromagnet and attracts the plunger. At the same time, the needle valve incorporated with the plunger opens and the injector which is under the fuel pressure injects fuel in conic dispersion . As the lift stroke of the needle valve of the injector is set constant, the volume of the fuel injected at one time is determined by the length of time during which the solenoid coil is energized (injection time)

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2002-2003 Honda GL1800/ A Frame Weld REPAIR PROCEDURE OVERVIEW

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Filed Under (Honda) by admin on 14-12-2010

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If your inspection identifies a crack or cracks in or on either Left or Right lower crossmember frame welds, STOP – call your DSM or TechLine for further instructions. • If your inspection reveals no cracks, proceed to REPAIR PROCEDURE. NOTE: Verification of repair can also be found in the Dealer Responsibility Report and on the Honda Interactive Network (iN). If you have any questions about verification, please contact TechLine before proceeding. IMPORTANT: For complete Dealer and Welder Repair procedures, refer to the following items: • 2002-2003 GL1800/A Frame Weld Safety Recall Dealer Booklet (S0510) • Frame Weld Inspection Chart (S0513) You MUST provide your TIG welder with the following items: • 2002-2003 GL1800/A Frame Weld Safety Recall Welding Manual (S0511) • Welding Template Box (S0512) All of the above items were shipped to you with this Service Bulletin. If you need additional copies of the Dealer Booklet , Welding Manual , Welding Template Box , or Frame Weld Inspection Chart , you may order them at no cost from DDS at (440) 572-0725. For your reference, a brief repair procedure overview is provided below. Disassembly Overview You will be removing the following components from the vehicle as instructed in the Dealer Booklet : • Handlebar weights • Rear view mirrors • Swingarm pivot covers • Rider foot pegs • Seat • Side covers/Engine side covers • Fairing pockets • Fairing molding • Meter panel • Top shelter • Battery • Fuel tank • Main wiring harness ground • Front lower fairing • Front exhaust pipe protector • Muffler/exhaust pipe • Antenna Whip(s) • Coolant reserve tank • Center stand NOTE: You will need to remove any accessories that may contact the ground during the Welding and Re-assembly procedures. IMPORTANT: You MUST cover the following with RED duct tape for welder identification pur- poses: • Negative (-) and positive (+) battery cables • Fuel return hose end • Fuel feed hose end • Main wiring harness ground • Alternator • Exhaust ports Welding Overview A qualified TIG welder will weld the frame following the procedures in the 2002-2003 GL1800/A Frame Weld Safety Recall Welding Manual . Re-assembly Overview You will be inspecting the new TIG welds, painting the frame, and re-assembling the vehicle as detailed in the Dealer Booklet and Frame Weld Inspection Chart (S0513)

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YAMAHA YZF-R1P/ YZF-R1PC SERVICE MANUAL

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Filed Under (Yamaha) by admin on 25-11-2010

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1Fuel pump 2Pressure regulator 3Fuel injector 4Throttle body 5Intake temperature sensor 6Throttle position sensor 7Intake air pressure sensor 8ECU 9Atmospheric pressure sensor 0Coolant temperature sensor ACylinder identification sensor BCrankshaft position sensor ÈFuel system ÉAir system ÊControl system Illustration is for reference only. 1 – 4 GEN INFO FEATURES Fuel control block The fuel control block consists of the following main components: An engine trouble warning light is provided on meter panel. 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 sensor Throttle angle detection Cylinder identification sensor Reference position detection Crankshaft position sensor Crankshaft position detection and engine RPM detection Speed sensor Speed detection Actuator block Injector Fuel injection Fuel pump Fuel feed Air Induction system, air cut valve Induction of secondary air 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 operating the ECU. B. Input interface circuits The input interface circuits convert the signals output by all the sensors into digital signals, which can be processed by the CPU, and input them into the CPU. C. CPU (Central Processing Unit) The CPU determines the condition of the sensors in accordance with the level of the signal that is output by the respective sensor. Then, the signals are temporarily stored on the RAM in the CPU. Based on those stored signals and the basic processing program on the ROM, the CPU calculates the fuel injection duration, injection timing, and ignition timing, and then sends control commands to the respective output interface circuits. D. Output interface circuits The output interface circuits convert the control signals output by the CPU into actuating signals for the respective actuators in order to actuate them. They also output commands to the indicator and relay output circuits as needed.

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