You have your new air filter and exhaust system ready to put on the bike, but recognize the need to change the airfuel mixture to take advantage of the increase in air flow into the engine and exhaust flow out. Of course, there are reasons to do something as drastic as this. Plug the connector pair with orange colored wires from the micro. Fuel leak on fuel supply fitting under tank 2003 electra glide ultra classic fuel systems hi to all today i got a problem, fuel was leaking heavily out of the fuel supply line fitting under the tank at the chrome sleeve. Solid brass adapter and release valve, steel housing 100 psi gauge, stainless steel springs, viton orings, oring lubricant and nylon storage pouch. Harley davidson has a service bulletin on injector swaps for earlier models. That means if you own a mid1990s or later harley, chances are. Here is a power point presentation on the harley fuel injection system and the tuners that were used to tune it.
Push button completely releases all fuel through the drain line. If you have the adapter, you can use just about any fuel pressure gauge. Genuine oem fuel injector for harley davidson motorcycle. Efi uses these inputs to calculate the right amount of fuel mixture for optimum performance and change the fuel mixture to meet these demands. Since electronic fuel injection efi appeared on harleydavidson baggers in 1995, for many of us, the thought of a computer replacing the carburetors gas and air mixing duties has been a difficult proposition. Find the features you need in a range of prices to fit any budget. Fuel injection is a vital part of a motorcycles ability to burn fuel efficiently and control emissions in an everincreasingly ecoconscious world.
The harleydavidson espfi system is known as a speeddensity, open loop, sequential port fuel injection system, that controls both fuel flow, and spark timing. Ms531hd harley davidson diagnostic scan tool performance. Dynojet power commander pcv fuel injection tuner harley. This video is about setting the throttle position sensor and cold idle motor of the magneti marelli fuel injection system used on some harley davidsons from 1995 through 2001. Tuning a modern harley davidson electronic fuel injection system refers to the use of computers and software to produce a fuel optimization map for the enginedesigned to optimize the release of fuel mixtures under varying conditions.
Harley fuel injection modules are an important but oft overlooked piece of the puzzle. Allowing you full tuning access to the terminator x and terminator x max ecu. With the software running on a pc or laptop with usb connection and running windows 7, 8. Electronic fuel injection efi controllers for all kinds of harley motorcycles. During this difficult time, we are working hard to maintain our service. Rsr fuel injection, the only race proven fuel injection system. Harley davidson 20022010 replacement fuel injectors. Fuel moto motorcycle efi tuning, exhaust components. Rsr fuel injection systems are the most thoroughly tested and proven fuel injection systems for harley vtwins rsr fuel injection harley note. On the micro efi tuner, there are 2 pairs of injector connectors.
The system is designed for harleydavidson electronic sequential port fuel injection, espfi systems offered on the following efiequipped models. For those of you who havent noticed or are stuck back in the 80s, a large number of the bikes coming from milwaukee have fuel injection installed. I thought it might be a good idea to start with informative books on the subject, good books are few and far between on this. It wasnt all their fault though, riders and shops tried to hopup those ff1 equipped bikes without fully understanding how the system worked and what was needed to adapt it to a motor built for higher performance. Harleydavidson electronic fuelinjection tuning aids. Harleydavidson no longer produces any models with carburetors. The mighty harley is slowly loosing its carburetor. Tuning a harley electronic fuel injection system harley. That system was used on all the evo efi bikes, as well as the 9901 twincam touring bikes. One week later of the tuners time and the bike ran marginally. Electronic fuel injection efi and performance parts for harley davidson and vtwin motorcycles. Easy to use efi controller using load based technology to adjust fuel for popular models like the fat bob, road glide, electra glide, 1200 nightster, etc. Speeddensity an electronic control module ecm monitors manifold air pressure. We are direct partnered with the manufacturers, several of which we are involved at the engineering level.
First thing we would suggest is to test for a harley davidson efi fuel leak. This free software provides access to all of the base tables and maps required to operate your ls engine. In the alltoocommon world of performance modification, the intake and exhaust tracts are often upgraded without paying much attention to the fueling needs of the engine. If you were to purchase an exhaust that is similar in size, shape, volume, and design then remapping the fuel injection may not. Harleydavidson introduced electronic fuel injection efi to its product line in 1995. Introducing the terminator x software from holley efi.
The fuel pressure should remain steady 5562 psi at any rpm. While innovation is seldom met with universal approval chain to beltdrive being a prime example those who were skeptical of the phasing in of electronic fuel injection, or efi, had at least one sound reason for disapproval. As of june 2018 these are no longer being shipped or manufactured by rb racing. To get the most performance out of your bike remapping the fuel injection is a must. It predates the epa clampdown, so it includes a little info on the ways to tamper with the oem system electronic fuel injection for harley ok so here are some points from the presentation. But due to high order volume some order processing may be slightly delayed. It would interface with your zumo gps and your harley audio and allow you to speak using your headset through your smart phone while riding i know i know but it is hands free. Holley efi terminatorxsoftware terminator x software. Harley davidson motorcycle electronic fuel injection.
Since then, the factory has followed a slow but steady evolution toward equipping more and more models with efi. You bought your new bike and are looking to improve the power and the sound. Magneti marelli mm designed harleydavidsons first incarnation of fuel injection. Performance fuel tuners for harley davidson revzilla. Hfp370hdt6 fuel pump with strainer and tank seal harleydavidson dyna super glide fxd, fxd35, fxdidyna super glide sport fxdxi 20022010 replaces 7524504,7524504a,6101604b 5.
The fuelpak fp3 is the bestselling ecu tuner in the world for harleydavidson motorcycles because it is the most intuitive tool on the market, giving you the power to control every aspect of your motorcycles tune, view live sensor data, calibrate your speedometer, read and clear trouble codes, utilize a live sensor data display, and offers best in industry support from our fp3. Harleydavidson fuel injection basics it is a sad day in hogville. The 2008 models have flybywire throttles but are pretty much the same as the 2007 models. Harley davidson electronic fuel injection efi harley. Yah, this is not something you hear about being done very often, but it can be and is done on occasion. Harley fuel injection tuning basics live tech talk kevin baxter pro twin performance duration. We carry more harleydavidson products than any other aftermarket vendor and have them all at the lowest guaranteed prices. You could try and ask your mail order or web retailer common tuning questions and you will usually be directed back to a manufacturer for support. Now, holley efi products power these cars and are dominating the performance world. How to program a thunderheart thundermax auto tune. The webs most trusted source for harleydavidson fuel injection. Dynojet 20012006 harleydavidson softail power commander 5 pcv fuel 15024. Tuning the efi system of a harley davidson motorcycle.
Harleys first crack at electronic fuel injection ff1 didnt go over very well. Reset harley davidson magneti marelli fuel injection tps. Quickly diagnoses loss of power, poor fuel economy, causes of stalling out, hesitation and more. Faulty carburetors can often be diagnosed and repaired on the side of the road, while narrow. Direct replacement harley davidson iwp043 fuel injectors for the following applications. Installs in seconds using a onepoint connection allowing inline service of the motorcycles fuel injection system. The ms531hd is a professional diagnostic tool for harleydavidson workshops and tuning centers. The webs most trusted source for harley davidson fuel injection. The harley faithful were leery of the electronic technology that replaced the venerable, easytotune carburetor.
Also could be bad wire or hole in fuel line which is causing bad fuel pressure. Includes functions to perform diagnostics of electronic fuel injection modules and others i. With just a setup of pipes installed it is not imperative to remap the fuel curve as it will not run lean enough to cause any damage. You dont need to have a deep understanding of the harley davidson efi system to use mytune.
Mytune is an easy to use windows program that takes data logged from your bike and generates a tune tailored specifically for your bike. Rick decided to do a full electronic fuel injection efi to carburetor conversion on chola. You should be able to rent the fuel adapter that you will need from the dealer. Screamin eagle performance parts harleydavidson usa. Including but not limited to, fuel tables, timing tables, idle control, dbw control, boost and nitrous control, and much more. Electronic fuel injection basics in 1995, harleydavidson began offering electronic fuel injection efi as either standard or optional equipment, and since 2007, all harley models include efi. The race tuner software program comes on a cdrom along with a hardware key adapter that allows connecting a pc to the stock ecm. Electronic fuel injection efi was originally used on harley davidson motorcycles beginning in the 1995 production year and currently the delphi electronic fuel injection system is used on all. A race tuner software developer borrowed a 2008 harley from one of our employees to tune the 103. Harley electronic fuel injection to carburetor conversion.