2004 softail fuel sending unit

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2007 Softail HARLEY DAVIDSON FUEL PUMP/ FUEL GAUGE SENDING UNIT REMOVAL AND INSTALLATION

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Filed Under (Harley Davidson) by admin on 30-03-2012

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1. Remove seat. 1 WARNING 1 WARNING To prevent spray of fuel, purge system of high-pressure fuel before supply line is disconnected. Gasoline is extremely flammable and highly explosive, which could result in death or serious injury. (00275a) 2. Purge the fuel supply line of high pressure gasoline. a. See Figure 4-36. Disconnect the fuel pump fuse from the main wiring harness. b. Start the engine and allow the vehicle to run. c. When the engine stalls, operate the starter for 3 seconds to remove any remaining fuel from the fuel lines. 1 WARNING 1 WARNING To prevent accidental vehicle start-up, which could cause death or serious injury, disconnect negative (-) battery cable before proceeding. (00048a) 3. Disconnect negative battery cable. 4. Remove instrument console. a. All but FXSTD, see Figure 4-37. Remove acorn nut and washer on instrument console to separate console from fuel tank. b. For FXSTD, see 8.26 INSTRUMENT CONSOLE: FXSTD. 5. Disconnect console wiring. Figure 4-36. Fuel Pump Fuse: View From Top Figure 4-37. Acorn Nut And Washer: All But FXSTD s0660x8xx 7526
4-28 2007 Softail: Fuel System HOME 1 WARNING 1 WARNING Gasoline can drain from the crossover line when disconnected from fuel tank. Gasoline is extremely flammable and highly explosive, which could result in death or serious injury. Wipe up spilled fuel immediately and dispose of rags in a suitable manner. (00259a) 6. Drain fuel tank. a. Obtain a short section of hose (5/16 inch I.D.). Insert bolt in one end of hose and install hose clamp to ensure that end is securely plugged. b. See Figure 4-38. Cut clamp (1) from one end of crossover hose (2). Quickly replace crossover hose on fuel tank fitting with open end of short hose while directing flow of gasoline from free end of crossover hose into suitable container. 7. See Figure 4-39. Unplug fuel pump module connector (3) [86]. 8. Remove top plate screws (2) and discard. 9. See Figure 4-40. Pull top plate (2) out of fuel tank enough to expose fuel hose and clamp (1). CAUTION Carefully inspect end of hose for cuts, tears, holes or other damage. Replace hose if any damage is found. Even the smallest hole can cause a reduction in fuel pressure. 10. Cut clamp and remove hose from regulator housing fit- ting.

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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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HARLEY DAVIDSON FUEL LEVEL SENDER ADAPTER BRACKET KIT INSTALLATION MANUAL

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Filed Under (Harley Davidson) by admin on 28-02-2011

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INSTALLATION To prevent accidental vehicle start-up, which could cause death or serious injury, remove main fuse before proceeding. (00251b) 1. Refer to the Service Manual and follow the instructions given to remove the main fuse. When servicing the fuel system, do not smoke or allow open flame or sparks in the vicinity. Gasoline is extremely flammable and highly explosive, which could result in death or serious injury. (00330a) 2. Remove the currently installed fuel tank from the vehicle. Follow the instructions for the correct model vehicle under FUEL TANK: EFI, REMOVAL in the Service Manual. 3. See FUEL PUMP/FUEL GAUGE SENDING UNIT, REMOVAL in the Service Manual for instructions to: a. Unplug the fuel pump module connector. b. Remove and discard the top plate screws. c. Remove the top plate, fuel pump and fuel level sender (fuel gauge sending unit) from the tank. NOTE Take care to avoid bending the fuel level sender float rod. A bent float rod will lead to erroneous gauge readings. 2 6 1 3 4 7 9 8 5 is05284 1. Fuel level sender 2. Electrical grounding tab 3. Fuel level sender lock tab 4. Adapter bracket 5. Slot (2) 6. Terminal strip insert 7. Sender to adapter lock tab 8. Slider 9. Adapter to tank lock tab Figure 1. Fuel Level Sender Assembly to Adapter – 4. See Figure 1. Clean the electrical grounding tab (2) on the back of the fuel level sender if necessary. The tab must make firm contact with the terminal strip insert (6) in the adapter bracket. Slide the original equipment (O.E.) fuel level sender (1) into the slots (5) in the new adapter bracket (4) as shown until the lock tabs (3 and 7) snap into place. Make sure the wire is not pinched between the adapter and sender. 5. See FUEL SUPPLY CHECK VALVE/TUBE in the Service Manual. Remove the check valve/quick-connect fitting assembly from the old fuel tank, and assemble to the new tank, using a new O-ring (purchased separately). 6. Fit the slider (8) on the adapter bracket into the fuel level sender mounting channel inside the tank, and push down until the lock tab (9) snaps into place. Make sure the sender and adapter wires are not pinched between the adapter and the fuel tank tunnel, and remain accessible through the fuel tank top opening. 7. See Figure 2. Obtain the assembly of the top plate (1), regulator (2) and fuel filter (3) removed from the old fuel tank, and the stainless steel screw (8) and nut (9) provided in this kit.

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BUELL ACCESSORY GAS CAP KIT INSTALLATION MANUAL

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Filed Under (Buell) by admin on 29-03-2011

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Installation NOTE When performing the following Steps, use the Fuel Tank Vent Valve Installation Kit (Part Number 91432-96Y). This kit consists of: * Fuel Tank Vent Valve Installation Aid * Fuel Tank Vent Valve Fitting Socket To protect against shock and accidental start-up of vehicle, disconnect the battery cables, negative cable first, before proceeding. Inadequate safety precautions could result in death or serious injury. Always disconnect the negative battery cable first. If the positive battery cable should contact ground with the negative cable installed, the resulting sparks may cause a battery explosion which could result in death or serious injury. 1. Disconnect battery cables, negative cable first. An open flame or spark may cause a fuel tank explosion if all traces of fuel are not purged from the tank. Use extreme caution when servicing fuel tanks. Gasoline is extremely flammable and highly explosive. Do not smoke or allow open flame or sparks anywhere in the area when working on fuel system components. Inadequate safety precautions could result in death or serious injury. 2. Remove gas cap. 3. Carbureted Models: Drain fuel tank. Disconnect hose clamp and fuel supply hose from fuel supply valve and drain fuel into suitable, clean container. See applicable Service Manual, Section 4 for complete, detailed procedure. Fuel Injected Models: Relieve pressure from fuel system. See applicable Service Manual, Section 4 for complete, detailed procedure. Drain fuel tank. a. Using suitable external fuel pump, such as a Gas Caddy, pump fuel from tank and into a suitable, clean container. b. See instructions for external fuel pump for correct use. 4. See Figure 1. Cut cable tie securing vent hose to fitting and remove vent hose from fuel tank. Even with the fuel tank completely drained, a small amount of gasoline may leak from the bore when the fuel supply valve is loosened or removed. Thoroughly wipe up any fuel immediately and dispose of rags in a suitable manner. Gasoline is extremely flammable and highly explosive. Inadequate safety precautions could result in death or serious injury. 5. If the fuel supply valve requires cleaning or repair, refer to applicable Service Manual, Section 4, for complete, detailed procedures. 6. See Figure 1. Remove the fuel filler cap and O-ring. 7. Remove the eight self-tapping screws from fuel clamp flange and remove fuel cap flange

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HARLEY DAVIDSON LED FUEL GAUGE KIT REMOVAL AND INSTALLATION INSTRUCTIONS

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Filed Under (Harley Davidson) by admin on 29-01-2011

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Removing the Analog Fuel Gauge NOTE The fuel gauge wires are routed through a tube in the fuel tank, and are secured by a clip at the bottom of the tank and, on some models, a clamp on the frame. Open the clip and clamp as needed, and be sure there is enough slack in the wires to be able to lift out the gauge. 1. At the bottom left side of the fuel tank, bend back the flexible clip slightly to free the fuel gauge conduit. Open the harness clamp on the frame if necessary to free the conduit. Gently pull on the conduit to draw the Multilock connector [117] out of the tunnel. 2. See Figure 2. Depress the pin on the socket terminal side of the connector, and pull apart the pin and socket halves. 3. See Appendix B in an appropriate Service Manual. Use a pick (Snap-On TT600-3 or equivalent) to remove the terminals or clip off the wires. Remove and discard the fuel gauge. 4. For Carbureted Models: See Figure 2. Remove the fuel gauge by firmly grasping and carefully pulling up (do NOT twist) on the gauge just far enough to free it from the fuel tank. Disconnect the two sending unit connectors. Feed the conduit and two wires up through the tube while removing the gauge. Remove and discard the fuel gauge. For Fuel-Injected Models: See Figure 2. Remove the fuel gauge by firmly grasping and carefully pulling up (do NOT twist) on the gauge to free it from the fuel tank. Feed the conduit and three wires up through the tube while removing the gauge. Remove and discard the fuel gauge. 5. Remove and discard the rubber gasket. INSTALLATION For Kit Numbers 75084-04B or 75237-03B 1. See Figure 2. Assemble the new gasket (3) to the LED fuel gauge (1) from the kit. Install the gasket so the flat side contacts the edge of the gauge. 2. See Figure 1. Use three of the Phillips-head screws and washers from the kit to connect the wires as follows: Fasten the Orange wire (1) ring terminal to the gauge connection marked “12V and “O” with a screw and washer. Fasten the Black wire (2) ring terminal to the connection marked “GND” and “BK” with a screw and washer. Fasten the Yellow/White wire (3) ring terminal to the connection marked “Y/W” with a screw and washer. 3. See Figure 2. While carefully lowering the fuel gauge, feed the wire harness (2) down into the drain tube until the three short (Orange, Black, Yellow/White) wires exit the hole at the bottom of the fuel tank. Gently pull the wires to remove slack while installing the gauge to the fuel tank. Do not twist the gauge during installation. Hold the gauge firmly and press down until it snaps into place

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YAMAHA Road Star Fuel Pump Relocation Kit INSTALLATION MANUAL

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Filed Under (Yamaha) by admin on 08-11-2010

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1. Remove seat and disconnect battery. Remove fuel tank along with both left and right side battery covers, and remove air box from carburetor (all per Yamaha standard shop manual procedures). 2. Remove chrome plastic cover over fuel pump and disconnect choke cable/knob from lower pump bracket. Remove pump-to-carb fuel line from fuel pump. Disconnect fuel pumps electrical lead connector. 3. Remove two (2) hex-head pump mounting bracket bolts and remove pump assembly from motorcycle. Slide fuel pump up and off bracket mounting posts (Caution: excess fuel may drain from pump and/or fuel lines and fuel filter!). Remove heat shield. Remove remaining fuel line from pump. Pull all fuel lines from filter and remove steel springs and hose clamps from these lines (these will be reused on the kits fuel lines). With a sharp knife or box cutter, trim off the top portion of the fuel pumps rubber isolation/mount system per Photo A. Next cut pumps wiring harness approximately half way between connector and pump. Strip the insulation from the ends of these wires as well as from the supplied Baron harness extension wires. Using the supplied electrical butt connectors, crimp Baron harness extensions red wire to pumps black-w/blue-strip wire, and Baron harness extensions black wire to pumps black wire. Repeat this process on other side of wire harness extension with pumps connector. Now, referring to Photo B, you will need to cut off the square tube that runs along the side of the fuel pump with a hack saw. Cut down toward pump body in a straight cut, then cut tube off by cutting along the body. This will allow you to twist pump in the rubber mount so the curved spigot is facing up (clockwise approx 1/4 turn). 4. Remove pump-to-carb fuel line from carb and separate electrical wires from this line. Remove this fuel line from engine. Re-route choke cable to right side of engine (toward carb) and rotate it up and over rear cylinder head back toward left side of bike. Mount new Baron choke bracket to the choke cable and tighten plastic nut. New choke bracket will mount to rear fuel tank mounting location (Photo C). 5. 99~03 models – Remove electrical relay bracket (found under the right side cover) from the bike and slide each relay off of this bracket. Install fuel pump onto new Baron Fuel Pump Bracket and install bracket in the same location as the stock bracket you just removed, using stock mounting hardware. Refer to Photo F for proper installation. 6. 04~07 models Remove electrical relays from stock bracket and remove relays from rubber holder. Cut rubber holder per Photo E and replace one of the relays into the rubber and install on to new Baron bracket. The second relay will be placed to the right of the tool bag under the seat and secured with the provided two-sided tape pad. Reconnect plugs to the relays. (Photo F)

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Carbureted vs. Fuel Injected Systems

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Filed Under (Tips and Review) by admin on 25-10-2010

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fuel injection (FI) systems have been around since the 1950′s and became widely used in cars during the 80′s. By the 1990′s all cars sold in the United States were equipped with FI systems, and though motorcycle manufacturers have included FI systems with some models as early as 1982, it isn’t until recently that the industry has seen wide spread use of FI. Since a lot of people come into my shop with questions about FI, I thought I would point out some of the differences between FI and carbureted systems as well as the benefits and disadvantages of both. A carbureted system is a mechanical system using air pressure to control the flow of fuel through the system. There are three basic parts in a carburetor, the throttle valve, the venturi and the float bowl. The throttle valve controls the amount of air that flows into the throat of the carburetor also known as the venturi which is simply a tapered hole through the carburetor body. As the venturi narrows, air moving through it is forced to speed up creating low pressure inside the carburetor. In a siphoning effect as the air tries to equalize the pressure, fuel is drawn in from the float bowl mixing with the air before entering the engine. The wider open the throttle valve, the more air will flow, drawing more fuel. A number of circuits are built into the carburetor in order to control the amount of air/fuel being drawn into the engine. In this context a circuit refers to a fuel passageway as opposed to an electrical circuit. In fact, nothing electrical controls fuel delivery in a carbureted system, it is all based on fluid flow, vacuum and hydraulics. The different circuits represent various throttle positions such as idle, partially open and fully open, and each of these circuits can be tuned to modify the efficiency of fuel delivery to the system. Fuel injection (FI) systems, on the other hand, rely on an electronic fuel pump to deliver fuel. The fuel pump delivers fuel at around 50psi as opposed to carbureted systems at normal atmospheric pressure of about 15psi. When the fuel reaches the injectors, the higher pressure allows much finer atomization (creating mist) of the fuel. The injectors then spray the atomized fuel into the intake manifold in a uniform conical pattern. The uniform pattern and fine atomization of the fuel spray increase the efficiency in which it is burned

2001 – '2005 Highlander (V6) FUEL INJECTOR TICKING NOISE

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Filed Under (Toyota Manuals) by admin on 08-10-2011

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Do NOT smoke or work near an open flame when working on the fuel system. Keep gasoline away from rubber or leather parts. Wear safety goggles while working with the fuel system under pressure. Do NOT disconnect any part of the fuel system until you have discharged the fuel system pressure. Even after discharging the fuel pressure, place a shop rag over fittings as you separate them to reduce risk of fuel spray on yourself or in the engine compartment. 1. Discharge fuel system pressure. A. Remove Circuit Opening Relay from Relay Block No. 1 located to the left of the Instrument Panel Junction Block behind the left lower finish panel If the connector and pipe are stuck, pinch the fuel pipe, push and pull the connector by hand to disconnect them. Do not use any tools. E. Drain the fuel that remains inside Fuel Pipe Sub-assembly No. 1. F. Place a tray under the vehicle or point of disconnection, if needed, to catch any fuel that may spill. G. Protect the disconnected fuel lines from debris by covering with a vinyl or plastic bag. H. Remove the original pulsation damper from the rear fuel rail. I. Remove and discard the remaining bolt holding Fuel Pipe Sub-assembly No. 1 to the front fuel rail

YAMAHA YZF-R125 SPECIFICATIONS AND OWNER'S MANUAL

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

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Fuel tank cap To remove the fuel tank cap 1. Open the fuel tank cap lock cover. 2. Insert the key into the lock and turn it 1/4 turn counterclockwise. The lock will be released and the fuel tank cap can be removed. To install the fuel tank cap 1. Push the fuel tank cap into position with the key inserted in the lock. 2. Turn the key clockwise to the original position, and then remove it. 3. Close the lock cover. NOTE: The fuel tank cap cannot be installed unless the key is in the lock. In addition, the key cannot be removed if the cap is not properly installed and locked. WARNING EWA11140 Make sure that the fuel tank cap is properly installed before riding. EAU13211 Fuel Make sure that there is sufficient fuel in the tank. Fill the fuel tank to the bottom of the filler tube as shown. WARNING EWA10880 Do not overfill the fuel tank, otherwise it may overflow when the fuel warms up and expands. Avoid spilling fuel on the hot en- gine. 1. Fuel tank cap lock cover 2. Unlock. 1. Fuel tank filler tube 2. Fuel level
INSTRUMENT AND CONTROL FUNCTIONS 3-8 3 CAUTION: ECA10070 Immediately wipe off spilled fuel with a clean, dry, soft cloth, since fuel may deteriorate painted surfaces or plastic parts. EAU43420 CAUTION: ECA11400 Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts, such as the valves and piston rings, as well as to the exhaust system. Your Yamaha engine has been designed to use premium unleaded gasoline with a research octane number of 95 or higher. If knocking (or pinging) occurs, use a gasoline of a different brand. Use of unleaded fuel will extend spark plug life and reduce maintenance costs. EAU13442 Catalytic converters This vehicle is equipped with catalytic converters in the exhaust system. WARNING EWA10860 The exhaust system is hot after operation. Make sure that the exhaust system has cooled down before doing any maintenance work. CAUTION: ECA10700 The following precautions must be observed to prevent a fire hazard or other damages. Use only unleaded gasoline. The use of leaded gasoline will cause unrepairable damage to the catalytic converter. Never park the vehicle near possible fire hazards such as grass or other materials that easily burn. Do not allow the engine to idle too long.

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SUZUKI VZR1800K6 And VZR1800/ ZK7 FUEL DELIVERY PIPE REPLACEMENT

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Filed Under (Suzuki) by admin on 26-11-2010

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NOTE: The fuel delivery pipe assembly can be removed from the throttle body without removing the throttle body assembly from the motorcycle. 1) Refer to section 6 of the service manual to remove the fuel tank and the air cleaner box. Place shop rags over the bore of each throttle body to prevent anything from falling into the engine through the throttle bodies. 2) Remove the wire harness clamp, disconnect the fuel injector couplers A and move the harness aside. 3) Remove the four fuel delivery pipe assembly mounting screws and remove the fuel delivery pipe assembly. 4) Replace the o-rings and seals with the new parts supplied in the kit (apply a small amount of engine oil to the o-rings and seals to ease the installation of the injector). To prevent damage to the o-rings or seals, don’t turn the injector when pushing it into the fuel delivery pipe and throttle body respectively. Install the new fuel delivery pipe assembly in the reverse order of removal. 5) Connect the fuel injector couplers A and clamp the injector harness to the fuel delivery pipe. DO NOT overtighten the harness clamp. 6) Connect the fuel tank, remove the shop rags from over the bore of each throttle body, and run the engine, checking for fuel leaks. DO NOT reuse the original fuel hose connector retainer. Confirm that the fuel hose connector has completely seated and locked (clicked) into position before turning on the ignition switch. 7) Refer to section 6 of the service manual to install the air cleaner box and the fuel tank. 8) Test ride the motorcycle to confirm proper operation. FUEL DELIVERY PIPE ASSEMBLY REPLACEMENT PROCEDURE

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