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Harley fuel pump test

Harley fuel pump test

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- Harley Davidson Magneti Marelli EFI 1995-2001, S&S VFI, & other . While testing does entail some work, few things are more rewarding than successfully troubleshooting your fuel pump relay. Feeding a Carbureted Engine with an EFI Fuel Pump. Too low pressure can To do the test start by removing the fuel pump fuse. Whining Noise From the Fuel Tank. Bob LaRosa and Mark DiPietro take the time to cover all painted areas, drain fuel from the system and use the right tool to remove the pump and filter from the tank. Holley carburetors powered every Monster Energy NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. If there is difficulty in removing the pump from the vehicle, take your battery to the back of the vehicle. e. YOUR FUEL PUMP IS OK, I know that since I faced similar problem. Your golf cart's fuel pump is essentially vacuum-powered using crankcase pressure. If this is damaged, then you can opt for a used fuel tank from Boonstra Parts and you can also come to us for the related parts. Never test for spark by removing the plug and grounding it against the engine. The fuel pump regulator may be bad. By the time I got back to his drive way it died before I could put it in park. Current flows through the gauge and variable resistor in the fuel level sender to ground. Using the Harley-Davidson specialty tool to remove the top plate retaining ring we were able to pull up the top plate exposing the check valve line and unhook it from the fuel pump assembly. If the shop is suggesting replacement for preventative maintenance only. If possible please have the part number of the unit you are looking for. Engine is a no start. One of those components is the fuel sender, which provides data to both the gas gauge and the fuel pump. Since then, the factory has followed a slow but steady evolution toward equipping more and more models with EFI. Helps you identify the fuel delivery system You can easily store the machine in a box and transfer it to any location you want. The single-butterfly, sequential-port fuel-injection system features an  Nov 24, 2012 Hi Donald, 1992-1996 touring models, fuel pump fuses, and relays will be behind the right side panel, 1997-2000 relay was under the seat  r/Harley: Anything and everything related to Harley-Davidson motorcycles. International Fuel pump factory 01-07 Harley Davidson Softail / Deluxe / Deuce / Fat Boy / Heritage / Night Train / Springer fuel pump W/ Regulator. Fuel Pressure Leak-Down Test. There should be a separation joint or a test port, where the pressure gauge attaches. Fuel pump problem can I just hot wire it to a toggle Fierofool's test failedfuel pump still wouldn't kick on after waiting a moment and then turning the key EXTERNALLY MOUNTED EFI FUEL PUMP Never been seen or done before. You may have to register before you can post: click the register link above to proceed. 00. 9 cu in); Compression Ratio 9:01; Fuel System3 Electronic Sequential Port Fuel Injection (ESPFI); Exhaust Black exhaust headers and  Find the Fuel-Tool Fuel Check Valve Rebuild Kit - MC300 at Dennis Kirk. New Intank EFI Fuel Pump For Harley Davidson FLHTCUI Motorcycle 75126-00A 00-01 How To Test A What Causes Low Pressure in a Fuel Pump? The fuel pump takes the fuel from the tank and delivers it to the carburetor or fuel injection system at the required pressure. The manual will help you locate the relay as well. The fuel level sensor kit from HD, part number: 61200008A, $215 bucks at Harley Heaven: Here's the fuel pump assembly with the basic Sportster low fuel light sensor (small cylinder part in the middle). B2117, Fuel Pump Output Shorted High. A Fuel Pump Current Draw test should be performed any time there is a performance complaint caused by a lack of fuel delivery, but it is not a replacement for voltage drop testing. FLHTCUI fuel pump fuse If this is your first visit, be sure to check out the FAQ by clicking the link above. As many motorcycle and dirt bike users have discovered, dealership fuel pump replacements are cost prohibitive and many times include unnecessary components. Carburetor Carb Valve Fuel Pump One of the more common problems with the fuel system of a Harley-Davidson motorcycle can be the failure of the fuel pump. The fuel injectors will always have pressurized fuel ready and waiting for the ECM command to open. When this happens, the fuel rail voids and the car is difficult to start when it's been sitting for a while. Race bike, big inch custom or a street fighter, it is important that you get MAD for serious horsepower. Free standard shipping is limited to locations within the continental United States and Alaska. The fuel filter may be clogged. Harley fuel pump and filter removal is a project you can do with ease. It could be plugged or there could be failure in the pump itself or the controlling circuit, such as the electrical connections or the feeding fuse. Does someone have any suggestions for an answer to my problem Once you have found the color wire it should be located in the wiring harness near the fuel tank were the pump is located. Fuel pump, side by side with the clutch, is one of the best Harley parts. Fuel Level Sender Test My 06 pump just got here, EXACT same fuel pump as the '03, same part number which crosses to a Walbro 255L pump. The eye-catching feature of many a motorcycle is, of course, the fuel tank. The following procedure will instruct in retrieving and clearing ECM Diagnostic Trouble Codes and TSM/TSSM codes through the Harley gauge cluster as well as a list of codes. If you experience hard starts especially restarting a short period after shutting off the engine, then one possibility is a leaking fuel system. The Harley-Davidson ESPFI system is known as a Speed/Density, Open Loop, Sequential Port Fuel Injection system, that controls both fuel flow, and spark timing. The fuel pump current can be measured by inserting an ammeter in series with the fuel pump load circuit at the fuse block and measuring current while the fuel pump Conventional Fuel Delivery Systems. VIDEO-In this Free video we show you how to remove the fuel/gas tank on your Harley Davidson motorcycle. Acrobat Printable Version. i notice the fuel pump wasn't coming on so check the fuse for the fuel pump is good, so I pull the fuse an check it with my tester an no power,is there a relay or another fuse I can check how do you test the fuel pump relay on a 2006 ultra classic harley - Harley Davidson 2000 FLHTCUI Electra Glide question Harleys don't have side stand safety switches. The fuel gauge problems were first noted in January, when a Harley-Davidson engineer reported that a test bike unexpectedly ran out of fuel while it was being operated to the Recall Investigation Usually, a bad or failing fuel pump will produce one or more of the following 8 symptoms that alert the driver of a potential issue. Removing your fuel pump is a fairly straight-forward process and can be easily done at home. Show 5 . Get free standard shipping to your front door or almost anywhere when you make a $50 minimum purchase. Have a fuel pressure gauge connected to the test port. If the test light illuminates and still no pressure the fuel pump had failed, if the Shop the best Harley-Davidson Fuel Lines for your motorcycle at J&P Cycles. An area often overlooked is the performance of the fuel system not while the engine is running, but when it is shut off. . And how to fix it. Harley-Davidson introduced electronic fuel injection (EFI) to its product line in 1995. Get great deals on eBay! Quickly and easily diagnose fuel-related issues on gasoline vehicles equipped with standard or small Schrader test ports as well as other popular applications. NOTE Here is a walk through on a common Harley Twin Cam Fuel Pump failure. 3-1/2" gauge and hose configuration allows adapters to connect directly to the gauge and bleed-off or connect to the 4 ft. If you switch the relay with a different one of the same size and rating, ( same amount of prongs on the bottom ) than you can try to start the car or listen for the fuel pump to run with the key on. The MOCO screwed up the fuel lines. Online shopping for Fuel Pressure Testers - Diagnostic, Test & Measurement Tools from a great selection at Automotive Store. crankshaft and camshaft sensors, fuel pump, fuel filter, all spark plugs, and my truck is still acting up. I tested the fuel pump by connecting it directly to the battery and it seems to work fine. And with a fuel pressure test gauge from AutoZone, it’s easy. Harley Davidson motorcycle replacement fuel pump. When one component of the electronic chain breaks, it is sometimes necessary to test several components. An old or worn fuel pump may produce a noticeably loud whine or howl while running. Get free shipping, 4% cashback and 10% off select brands with a Gold Club membership, plus free everyday tech support on aftermarket Harley-Davidson Fuel Lines & motorcycle parts. TU-449. Starting in 2007, all Harley models are shipped with EFI, including Sportys for the first time. Main difference is the regulator assembly, and what looks like a different pick up. There may be a pinhole in an aging fuel line. To perform a correct fuel pressure test you will need to purchase, rent, or borrow a quality Harley fuel pressure tester gauge with the correct adapters to fit your Harley Davidson output fittings. Not only is regular replacement of the fuel filter part of your bike's basic maintenance needs, but filter replacement will also allow for inspection or replacement of the in-tank fuel lines and fuel pump assembly. Most fuels contain ethanol. I did the test on the fuel pump and it was making that slow straining sound like last time. 140 PSI Fuel Injection Pressure Injector Pump Tester Test 9 product ratings - 0-100 PSI Fuel Fuel Pressure should be steady between 55-62 PSI. The accelerator pump diaphragm will wear or crack over time or if left to sit in a fuel filled CV carburetor for extended periods and will eventually deteriorate. Let’s further explain those three terms. For carb equipped models, turn off the fuel petcock and run the   In its simplest terms, an electronic fuel injection (EFI) system is a computer controlled i. The fuel injection pump tester comes with flex hoses, fittings and instructions for quick reference. It is becoming more and more common for people to use an in-tank electric pump to feed a carbureted engine. Sometimes there is no room to have a mechanical fuel pump in the engine compartment. To operate the fuel pump with the test connector and the engine OFF, connect a powered jumper lead to the connector. Shop with confidence. Fuel Pressure Regulator – Alsolocated in the fuel tank, the regulator controls fuel pressure between 55 and 62 PSI by returning excess fuel from the fuel pump back to the fuel tank. The first thing to consider when determining the mechanical compression ratio is whether the engine will use 92-octane pump gas or high-octane race gas. I looked for trouble codes with ECMSpy, and it found nothing wrong. We are also full R&D facility and offer custom in-house dyno tuning on our state of the art test cell and Dynojet 250i chassis dyno. (For the hell of it, I switched the test leads and the numbers came out good, but they were all on the opposite side of the table ). Then I tested the relay according to this , and it came out zero for most of that table. On three terminal relays, the case itself may serve as the ground connection. The tbi has two gas lines one is a feed and the other a return and the return line got bent. The heart of a 2001 Chevy Blazer's fuel system is the electric fuel pump mounted internally in the fuel tank. The fuel pump relay is usually controlled by the ignition or Powertrain Control Module, and when switched on, will provide current to the fuel pump so that it may function. Let engine cool before removing test hoses and reinstalling stock fuel lines. Issues with the fuel system of a vehicle can be frustrating to no end. More Details Buy. Start the engine  Buy Fuel-Tool Fuel Pressure Gauge MC-500: Gauge Sets - Amazon. Figure 12. We have done many projects in the Law Abiding Biker garage that required us to remove the fuel tank, so we wanted to show you how. The sender unit float controls the amount of resistance in the variable resistor. Use the jumper wires connected to the battery to test for voltage. Speed/Density – An Electronic Control Module (ECM) monitors manifold air pressure, If you’ve ever wondered how to test a fuel pump, you may have assumed it was a pretty complicated job. Turn off engine, open air-bleeder-valve until all fuel is drained from system. If that is indeed the case, you should be able to reset the switch. If you are currently searching for a Fuel Sending Unit for your Harley Davidson Motorcycle, we ask that you please call. If fuel pressure is within the limits test is completed. All fuel testing needs to be per- formed with the engine running. Displacement 883 cc (53. Harley-Davidson Fuel Injection basics It is a sad day in Hogville. Welcome to Fuel Moto USA! We specialize in EFI tuning components, exhaust systems, as well as a wide range of performance components. I have replaced the relay and still will not start . You will see that the fuel pump module is composed of many parts, including the fuel pump, fuel sender, and strainer. INCLUDES EVERYTHING ABOVE EXCEPT - OEM HARLEY FUEL PUMP, FUEL FILTER AND FUEL PRESSURE REGULATOR. Residue from the rust gets into the injectors when the fuel filter is in bad shape. If your bike does, a sharp jolt when trailering it could have tripped the switch. Holley® has been the undisputed leader in fuel systems for over 100 years. Any motorcycle that leaks fuel from under the fuel cap will have its gas tanked replaced, free of charge. Today's vehicles are fuel-injected and require a more pressurized fuel supply than a mechanical fuel pump can deliver - as a result, they use an electric fuel pump or fuel module mounted in the gas tank itself. Ethanol is hygroscopic thus drawing moisture from the air into the fuel. Features Include: Locate the fuel pump relay; you may be able to connect battery power to it. The return is also located in the tank, hence only one line I am pretty certain that it is a fuel pump issue, but I don't want to have it towed to the dealer again, just for them to find no problem. Harley Fuel Pressure Check Gauge MC800. The mighty Harley is slowly loosing its carburetor. Introduction. OK, my 2009 XR1200 won't start due to the fuel pump not powering up when the I think you could take the one relay out of your '04 to test it Run the engine long enough for the treated fuel to reach the carburetor or fuel injection system. com ✓ FREE DELIVERY HFP-382HD Fuel pump with Strainer Replacement for Harley- Davidson Softail Deuce/FXSTDI (2001… OTC 5630 Fuel Pressure Test Kit. working on my 2008 screaming eagle ultra classic that I just got. I have a 2006 harley dyna low rider that will not start. Tool supplied with all necessary hose connections to do this test in about the. 2007, XL 1200X Forty-Eight 2011-2018, XL 1200V Seventy-Two 2013-2016, XL 1200T Super Low 2015-2018, XL 1200R Roadster 2007 2008 2009 Free Shipping with $50 purchase. The check valve is the line on the outside of the module. Fuel System leakdown failures can be caused by a leaking fuel injector(s), a bad fuel pressure regulator (FPR), or a leaking fuel pump check valve. The pump itself could fail. Check that fuel sprays from the accelerator pump nozzle when rolling on the throttle (test with engine off). If there is a problem with fuel delivery and the fuel pump is working (the whirr one hears prior to starting when the ignition key and switch are turned on), then the first things to look at are generally the tube (the filter housing hose) that connects the pump body to the Filter Housing (23), and the Fuel Regulator. The kit is used to diagnose drivability issues on fuel injected Harley-Davidson motorcycles, and features easy installation for in-line service of the motorcycle's fuel injection system. While the more generally recognized term "compression" refers to the pressure limits at the top end of the engine, crankcase pressure actually refers to the pressure present at the bottom end, below the piston. Without proper test equipment you won’t be able to test the relay but many of the relays in the box are the same AMP rating and size. Many new engines simply do not have the provisions to use a mechanical fuel pump. Get Full Details. During the test, listen for any unusual noise from the fuel pump or fuel pump relay. The Mityvac Pressure Tester Fuel Injection checks for leaks in fuel-injected vehicles. Apr 11, 2013 Before you jump the gun and swap out a fuel pump, consider performing a simple voltage drop test to check the circuits that are responsible for  In theory Harley's fuel injection system is still an open-loop system by design. Article courtesy of American Iron Magazine The Harley-Davidson ESPFI system is  Replacement Harley oil pumps must be primed after installation but before their explode within a few hundred yards of leaving the garage on the first test ride. They come with 3/8" NPT inlets and outlets & a 4 amp maximum draw. All Balls Fuel Pump Kit (47-2020) for Harley XL 1200 50 50TH Ann. Ground the test light and probe (pierce the wire's outer coating with the test light point) the wire, have a helper crank the engine over. Find great deals on eBay for harley fuel pressure tester. 4) Accelerator pump weak or not spraying. E-10 Alive: The corrosive damage ethanol gasoline does to your fuel pump Tom Jackson | July 23, 2013 Its a nearly-new fuel pump from a 2003 Harley Davidson with just 11,000 miles on it. Fuel Moto does not offer technical support for diagnostic trouble codes. Re: New Fuel Pump Doesn't Want to Suck Gas from the Tank Dave, what you explained appears the engine doesn't have enough vacuum to allow the pump to pull gas from the tank. Some manufacturers provide a separate underhood pigtail test connector to power the fuel pump. Test a 2001 Blazer Fuel Pump. fuse to the fuel injectors, the coil, and through the fuel pump fuse to the fuel pump. . Precision performance and great looks at a price that will kill the competition! How to Test the Fuel Gauge to See If It Is Working by Chris Hoke There are two main components to the fuel gauge system: the sender unit that measures the amount of fuel in the tank, and the gauge itself that displays the amount of fuel to the driver. Follow me on Steemit. Fuel Level Gauge. So, several years ago my fuel pump sometimes used to stop running during regular ride. Online shopping from a great selection at Automotive Store. Check the specification for initial pressure on your vehicle repair manual. On most bikes these days with diaphragm-type fuel pumps, the pump will prime itself every time you power the motorcycle up. Sep 19, 2008 Ignition/Tuner/ECM/Fuel Injection - Fuel Pressure Regulator diagnosis? They took it for a test ride, and agreed yep problem is there. If not we will be happy to look it up for you. It checks for fuel pump problems including leaking injectors, fuel rail  Jun 20, 2013 Within our discussion here, we'll discuss possible issues with golf cart fuel pumps , how to test for proper operation as well as replacement  AutoZone makes checking fuel pressure easier than ever. Harley-Davidson will notify owners, and dealers will inspect the motorcycle and test to see if fuel can leak from under the fuel cap. The Harley V-Twin engine responds exceptionally well to an increase in mechanical compression. The fuel tester’s housing is designed to ensure the engine is in place. I can hear the fuel pump kick on, but I is not getting any gas to the tbi or even the fuel filter does not even have a drop of fuel. Oil Pump for late 1985 to 1988 Columbia Par Car models G3, G4, and U4 with rear mounted oil tank Sniper fuel pumps are designed for carbureted applications. Everything on a fuel-injected Harley is connected together through what is essentially a black box called an electronic control module. Once you know how to test a fuel pump relay, you can test other automotive relays without much trouble. Sometimes, you might not even realize that you have a bad fuel pump relay until you In Tank Fuel Pump Comparison Test 2018 Real Street Performance Shootout In-Tank Fuel Pump Comparison Test - 2018 Real Street Performance JavaScript seems to be disabled in your browser. Starting in 2004, Harley's began to use serial bus technology (the ability to transfer multiple bits of data over a single . So I was at my dealer and Quickly test the fuel pump pressure on most injector systems with this fuel injection pump tester. The PCM commands the fuel pump tho apply 35-65 psi of fuel pressure to the injectors by grounding the primary fuel pump relay circuit. The water in the fuel cause internal components to rust. I asked idiots at the Harley dealer what to do, and they told me to put Harley Davidson Touring: How to Replace Fuel Pump and Filter. Others place a fuel pump test pin in the diagnostic connector. May 4, 2017 CW ARCHIVES: Harley-Davidson XR1200 - ROAD TEST. 99. 2008 Harley fatboy. This is the result of the relief valve being unable to open, so an excessive amount of gasoline is sent to the engine. This blowback means there isn't a good vacuum signal to work with at the fuel pressure regulator anymore, and the regulator will need to be replaced. There may be various reasons for a malfunctioning fuel pump. One of the first symptoms of a problem with the fuel pump is a loud whining sound. 2002 - 2009 HARLEY DAVIDSON VRSCA V-ROD 1131cc MOTORCYCLE SERVICE / REPAIR / SHOP MANUAL DOWNLOAD electrical system diagnosis, inspection, fuel pump, tie rods If the fuel pressure regulator is failing at the vacuum port, as your partner revs the engine you'll actually see fuel seeping or spraying into the vacuum line. Usually Home Parts Fuel / Gas Tank . I'm not getting power to the fuel pump fuse on my 2007 roadglide My 2007 Harley roadglide is not staring . Items 1 - 60 of 66 With a lifetime warranty and guaranteed fitment, you can save yourself the cost of buying a complete fuel pump assembly to replace one  fuel supply system. We carry more Harley-Davidson products than any other aftermarket vendor and have them all at the lowest guaranteed prices. We are currently custom building New Replacement Fuel Sending Units. Find great deals on eBay for Harley Fuel Pump in Intake & Fuel Systems. Step 6 - Test the Pump. In this video, Mike walks us through the use of a Harley Davidson fuel Begin the test by removing your fuel pump fuse and running the m/c until it stalls. Harley - Columbia Fuel Pumps, Kits & Oil Injection. 2007 harley road fuel pump not priming, I turn on key and dont hear the fuel system priming. It’s important to check the fuel flow. The fuel system on the Blazer is quite sophisticated, which makes troubleshooting a tricky process. Fuel pump factory Intank Fuel Pump 2002-2007 Harley Davidson Road king Classic / Screamin Eagle / Custom W / Fuel Pressure Regulator A fuel pump’s reliability is dependent both on its ability to operate continuously, as well as maintain specified fuel pressure. At Dennis Kirk, you will find the best selection of Harley-Davidson Fuel Pump. Get a fuel pressure test kit and check the fuel pump and fuel system on your ride today. I have no power to either side of the fuel pump fuse and no pump sound coming from the tank when I turn the key on . How to test a motorcycle fuel pump yes running water through a fuel pump can cause it to seize with rust if you let it sit with water in it, but you can test it with water if you rinse or air Free Shipping with $50 purchase. Regular price $89 99 $89. 255LPH Fuel Pumps, OEM Replacement Fuel Pumps, Walbro Fuel Pumps, Motorcycle Fuel Pumps, ATV Fuel Pumps, Personal Watercraft Fuel Pumps, Injector Dynamics, Marine Outboard Fuel Pumps, Harley Davidson Fuel Pumps, Quantum 340LPH Fuel Pumps, Injector Dynamics, AEM Electronics, Fuel Pressure Regulators If your motorcycle isn’t starting, the fuel pump is usually one of the reasons this could happen. This externally mounted fuel pump case will help you install fuel injection on your Harley or Custom without cutting up your fuel / gas tank. com as How to Replace a Fuel Pump Relay. Harley-Davidson Electronic Fuel Injection Project: Maximum Air Delivery (MAD) is required in order to create a high performance engine. About Us. High-pressure regulator. Harley Stock Replacement In-Tank Fuel Pump. Buying a car is a tremendous investment, so when your gas mileage becomes an issue, you want to take it seriously. You can easily tell when you need a fuel pump replacement for Ford F150 because your truck's fuel economy suffers. to be fixed? anyways, talked to them today and they said they have a fuel pump ordered. DISCLAIMER: this information is for reference only. Then connect your jumper wires to the battery and the fuel pump and test for More Details Buy. Check the wiring diagram before using this method. For those of you who haven't noticed or are stuck back in the 80's, a large number of the bikes coming from Milwaukee have fuel injection installed. Today all Motorcycle Fuel Pump deals at wholesale prices. Lifting fuel pump out of fuel tank. Find harley davidson softail from a vast selection of Fuel Pumps. For Harley- Davidsons that is 55-62 PSI (pounds per square inch). I do not hear the fuel pump kick also checked spark and am not getting spark. If the fuel pump fails, your engine will not receive the fuel it needs to operate and your engine will not run. Usually, bad fuel pumps slowly warn you. Additionally, Harley-Davidson will provide for the installation of 25° angle cone spray fuel injectors on those motorcycles where use of the 8° fuel injectors (part number 27625-06) is determined to be directly responsible for cold start and/or driveability problems. In fact, many engines are poor performers because they lack sufficient mechanical compression. While there could be a few causes for poor gas mileage, a failing fuel pump relay is one of them. The Fuel Pump is Pumping? Also make a point to listen closely to the fuel pump. See REQUIRED DEALER ACTION. Long hose with swiveling gauge allows you to easily attached the gauge to your 2001 and newer Harley Davidson® Motorcycle and check both static and under load fuel pressure readings. Hook the pressure gauge to the fuel pump test fitting. J&P has your Harley-Davidson fuel injectors, plus all the other parts and tools you’ll need like a Harley throttle position sensor, Harley fuel pressure regulator, or complete Harley-Davidson air intake & fuel And Now Harley Davidson Motorcycles. extension hose for applications where additional reach is necessary. Price $139. 2007 street glide, fuel pump won't prime I get no sound of the fuel pump kicking on when I turn on my bike I've checked the fuses, relays, and changed out the fuel pump still will not kick on when I turn the bike on. Some fuel injected bikes have a "tip over" switch that cuts juice to the fuel pump in case of an accident or you drop the bike. Used, second-hand motorcycle fuel tank. Also bonus. As the fuel pump relay controls power to the fuel pump, any faults with it can cause issues with the fuel pump, which can cause drivability problems for the vehicle. The recommended fuel pressure tester is equipped with a double dial that gives you accurate readings. com @HarleyMechanix. If pressure is not check Harley Manual for repair information. Usually the fuel pump fuse was an issue. Remove the fuel pump from the vehicle and put it on a flat surface. You'll find relays with three, five or even six terminals, though. I pulled the right - Answered by a verified Motorcycle Mechanic Keep your entire fuel injector system flowing clean and smooth with our wide range of Harley-Davidson fuel injection components. The tester’s gauge reads 0-100 PSI, 0 to 7 bar. This article originally appeared on YourMechanic. If you are a seasoned mechanic and you know what specific part is not functioning properly, you may just want to replace one of the individual parts. I don’t know what. When the Ignition/Light Key Switch is turned to IGNITION, the fuel gauge is connected to + 12 vdc. With the ignition key “ON,” then flip the engine cut-off switch on your handlebar to the “ON” position. checked fuses and all have power except no power at fuel pump fuse. Lang Tools offers the Harley Fuel Pressure Test Kit No. On two-line fuel delivery systems fuel pressure is controlled by an external, vacuum-modulated fuel pressure regulator. Fuel injectors become clogged due to hydrocarbons, sediment and other elements in the fuel. On older engines, the fuel pump was mounted on the engine itself and driven by the camshaft. Shop our I would perform a pressure test on your fuel pump. How to do a Leak down test for Harley Davidson? Have a leak down pressure test done on the fuel system, you may have a leaky fuel pressure regulator or a faulty fuel pump. You need to run a compression test to determine if the engine is in need of repairs. The tester fits most systems, except for Bosch, CIS-Jetronic, and GM throttle body systems. Yankee from . 1. Locate your fuel pump test point, which is usually near the fuel injectors, and locate the point at which the pump hooks up with the filter injector rail. 4500270 is the part number for the walbro pump I bet you can order the regulator and pick up setup and make your '03 pump better then it was. harley fuel pump test

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