Fuel Injected Harley Backfire

Hi , i asked a qeustion about my Stang a little while ago, it was continuisly backfiring and i couldn't get it right, everything seemed to be right, timing, advanced timing. Engine Hesitates, Stumbles, Lacks Normal Power The computer uses this information to determine how much fuel is needed to maintain the correct air/fuel mixture, and when extra fuel is needed if the throttle suddenly opens wide. If the pipes don't have enough baffle in them it will probably keep doing it. Ads are free. Connecting wirelessly by Bluetooth to any iPhone or Android Smartphone, Fuelpak FP3 uses Flash technology to recalibrate engine parameters and mapping for exhaust systems and other performance upgrade downloaded from the expansive library of calibrations developed by Vance & Hines. To test your fuel pressure switch, you'll need to verify it's got a closed circuit when the engine is running (showing adequate pressure), but you'll also want to verify that it opens the circuit as fuel pressure drops. For older Magnetti Marelli fuel injected bikes, adjusting the fuel table to remove fuel can help reduce popping. After running the engine for a few minutes, you can add plain gas to the tank and let the oil injection pump take over. They perform a set function based on rules and information stored in the ECU, with all the freedom digital control systems allow. All three of these issues have a direct effect on the air-to-fuel ratio. Air/Fuel Mixture Tuning Guidelines. Engine's are inefficient when cold and will require a lot more fuel, so that may be what's masking the symptoms until warm. Get free shipping, 4% cashback and 10% off select brands with a Gold Club membership, plus free everyday tech support on aftermarket Harley-Davidson Road King Air Intake & Fuel Systems & motorcycle parts. when riding 2005 fuel injected harley road king, engine pops, backfires, and idles fast, why? - Harley Davidson 2005 FLHRS - FLHRSI Road King question. was created by syllinx22 When in park it will sometimes start sputtering and if i give it gas it will backfire through the throttle body. Backfiring is typically a too-rich condition. If your running fuel injection start by checking spark then fuel injectors and then look at sensors (temp, oil pressure, air flow/temp, crank position, cam position). If the bike has no injection pump, or it has been disconnected, make sure you use only 20:1 premix for fuel. Fixing the Dreaded Lean Bog on Keihin FCR Carburetors: I recently had the pleasure of performing a complete frame down rebuild on a 2007 CRF250R that came to me with an intolerable bog issue when the throttle was stabbed from idle or low RPM (both when riding, and on the stand). All Twin Cam & fuel injected Evolution engines are fitted with single fire ignitions. Harley-Davidson first entered into the power cruiser category in 2002 with some serious drag bike influence reflected in the styling. Edelbrock has been delivering the best combination of dyno proven electronic fuel injection performance for over 40 years. A partial vacuum in the fuel tank can reduce fuel flow and bring about a lean condition. It works on any bike, no matter if it is a plain stock one, has a performance exhaust, and/or performance air cleaner or any other performance upgrade installed. Real backfiring means the engine is not properly timed and the fuel/air mix is getting a spark and ignition at the wrong time (when the intake valve is open). Air Intake & Fuel Systems Twin Air 153216FR Backfire Air Filter for. Other causes of backfire are bad or weak fuel pumps, low fuel pressure and clogged fuel filters. The other is an exhaust leak. DonSPEED and Don Shalla Enterprises 3319 Fitzgerald Road, Suite 12 Rancho Cordova, CA 95742 Motorcycle Dyno tuning for fuel injected and carburetted Harley-Davidson, sportbikes and dirt bikes. If for any reason a failure is sensed, the system will go into one of three failure modes, Scott explained. This is what we are going to discuss. A fuel-injected engine may backfire if an intake leak is present (causing the engine to run lean), or a fuel injection component such as an air-flow sensor is defective. Harley-Davidson Oil Filter Mobil 1 15-50w Synthetic Motor Oil (3 quarts) Royal Purple 75w-90 Synthetic Transmission Oil (1 quart) Harley-Davidson Chaincase Lubricant (1 quart) The Horsepower Gallery provides an extensive list of bikes , the power they produced and the major engine components. Better throttle response, no backfiring, and smoother cruising are just a few of the areas improved by the Fi2000. What it is, is incomplete combustion, fuel is left over, and shot into the exhaust pipes. Quick Fuel’s QFI is a bolt-on throttle body electronic fuel injection system capable of supporting 500 horsepower. Flooded: Spell fuel? Maybe kicks once or does not kick at all. You should also check fuel pressure to see if the pump is weak or the pressure regulator is defective. Instead of a fuel pressure regulator on the engine and a return line to send excess fuel back to the tank, these systems have a regulator mounted on the fuel pump or the Engine Control Module (ECM) controls fuel flow. Your “obsolete” 45” side-valve is capable of surprising speed & power, without loss of original appearance or reliability. TorqueTuning is the most effective way to move the power band of your Harley to where you ride. Backfiring on deceleration is much more common and often occurs when exhaust and fuel mixture changes are made. The is an introduction to tuning with a programmable electronic fuel injection ECU. Fits 1995-2001 Marelli® injected Harley-Davidson® motorcycles. there is a definate pop from the exhaust and you can feel the engine hesitate for a split second. I lost sight of her so I pulled over. Symptoms of a Faulty Manifold Pressure Sensor. I've read the unburnt fuel detonates in the header after being ejected from the exhaust port. These can be fuel injected engines or carbureted engines. If the idle speed is wrong, remove the air cleaner cover and. It is not a “replacement” brain for a motorcycle already equipped with fuel injection. Since then, the factory has followed a slow but steady evolution toward equipping more and more models with EFI. By Jimmy Lewis. As I am at an idle I smell rich exhaust, like I still had the carb on. The shifter control arm and shaft has come off my harley davidson road king twice with only 12,000 miles. Ford F-150/F-250: Why is My Truck Misfiring? Diagnosing why a Ford F-150 or F-250 is misfiring is vital for a car owner in terms of saving costs. Too little spark advance will cause low power, bad gas mileage, backfiring, and poor performance. Alpha-N Idle Fuel Alpha-N Idle Fuel ("Combo" Load Sensing in Engine Parameters) is a fuel injection strategy, based on TPS Position & RPM. This difference causes backfire in the exhaust. Although fuel injectors are individual, they are designed to work as part of a team with the other injectors. All three of these issues have a direct effect on the air-to-fuel ratio. While the market is awash with bolt-on EFI systems, QFI is different: It combines the superior fuel atomization aspects of a carburetor with the precise fuel control of EFI. 2009 Harley-Davidson FXD Dyna Super Glide/Custom refined and pretty much reduced to the very essence of riding a Harley-Davidson motorcycle in style. "Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. But for '96, Harley is offering an option on the Road King that truly brings modern touring performance to the Evolution Big Twin, and we're not talking about the new electronic speedo. When the exhaust valve opens on that cylinder, the extra air allows the unburned fuel to explosively burn and the popping noise of a backfire is heard. TFI is an acronym standing for Techlusion Fuel Injection. Ohio Cycle llc ATV, Motorcycle and Auto Warehouse 754 Harmon Ave, Columbus 43223 614-592-5060 Call for appointment. I've read the unburnt fuel detonates in the header after being ejected from the exhaust port. The most common causes for backfiring during acceleration include an incorrect fuel-to-air ratio, a faulty ignition and bad wiring. Mixture tuning on your Harley Davidson CV carburetor is a simple procedure that can easily be performed with basic tools. Ok, whatever, I'll just start car and then remove it. MSD Ignition 8728 RPM/Timing Controllers koop je gemakkelijk online bij Ignitionproducts. The TFI is a Generation 2 Electronic Fuel Injection (EFI) controller released by Techlusion dba Dobeck Performance. October 14, 2005 i took my harley davidson ultra classic into bryan hd shop to have a safety recall complied with. when riding 2005 fuel injected harley road king, engine pops, backfires, and idles fast, why? - Harley Davidson 2005 FLHRS - FLHRSI Road King question. An engine runs especially rich when accelerating, when cold, or when under a load. Also please check out the statistics and reliability analysis of Ford F-150 based on all problems reported for the F-150. check under door on driver side,nside frame rail you should see the filter. These units typically have adjustments for idle, mid, and high RPM ranges. For 8 injector motorcycles, the Dynojet Power Commander 5 has an increased capacity for adjustments going from -100/+100% up to -100/+250% for maximum fuel range. Unburned air and fuel pumped into the exhaust will often be ignited by the other cylinders still burning exhaust gases. See our Fuel Injection EFI Pro Flo E-Street Universal Marine Fuel Injection Kit. Its purpose is to stabilize the fuel and raise the octane levels which increases the performance of the engine and helps it run better. The backfire only occurs under heavy throttle in park and when it is under load and you try and go WOT. seeks out manufacturers of custom parts and accessories for Harley Sportsters, collaborating with them to build unique new items for your Sportster. 2002-2007 Harley Touring EFI Models. (12) Check oil pressure gage. Two companies to be aware of in the EFI Controller market are Dobeck Performance and DynoJet. If you ride a fuel-injected Harley-davidson motorcycle, one solution is to install a Thundermax self-tuning fuel management system. - 2005 Harley-Davidson Softail Fat Boy FLSTF/FLSTFI - 2005 Harley-Davidson Softail Deuce FXSTD/FXSTDI - 2005 Harley-Davidson Softail Springer Softail FXSTS - 2005 Harley-Davidson Softail Night Train FXSTB - 2005 Harley-Davidson Softail Standard FXST - 2005 Harley-Davidson FLSTFI 15th Anniversary Fat Boy - New! Service Manual Part Number 99482-05. Your ride has the later Delphi injection system, and it can be set up to run better than any carb by a competent tuner using SERT, PCIII, DTT, ect. The number of fuel lines on many vehicles has been reduced by "returnless" fuel injection systems. There can be a temptation not to consider golf carts proper automobiles, but they can often fall foul of the exact same problems which can affect a car. Bikez has a high number of users. Harley Davidson:. FAQs How Can I Tell If I Have An Intake Leak? What Exhaust Should I Run On My S&S Engine And Are Drag Pipes OK?. Unlike ignition malfunction, the car will probably start, even run for a while, only to shut down again. Fuel injectors: Most domestic cars after 1986 and earlier foreign cars came from the factory with fuel injection. For Sale: 1948 Harley Davidson WL 45" Flathead Solo Motorcycle Call or Text 763-234-2053 with any Questions or Offers Barn Fresh, Ready for Restoration or Perfect for that Rat Rod Project All Original Motorcycle, All Parts Un-modified OEM, Frame & Springer Straight and Complete with All Tabs. 4L the truck cranks but will not start some times. If your running fuel injection start by checking spark then fuel injectors and then look at sensors (temp, oil pressure, air flow/temp, crank position, cam position). 1999 harley 883 backfiring problems, harley back fire problem, harley backfire through carb, harley davidson backfire troubleshooting, harley sportster backfiring, harley sportster wont stop backfiring, sportster backfire, sportster backfire through carb, sportster backfires when starting, sportster backfiring, sportster backfiring through carb,. There is good fuel psi, just changed the fuel pump relay. The backfiring of the motorcycle is a signal that something isn't quite right. Since you've modified it, now you do. There are a couple ways to do this. Since your car is fuel injected, you probably have the Exhaust Gas Recirculation system hooked up, and this is where most of the backfire-causing exhaust leaks come from. Air leaks in vacuum lines, intake manifold gaskets, carburetor gaskets or fuel injection intake plumbing downstream of the throttle can all admit extra air into the engine and lean out the fuel mixture. All Nitrous kits for Harleys® come with billet aluminum brackets to mount the nitrous bottle and the fuel pump. Hardly any engine braking. Fuel Injection - Dirt Rider Magazine. Even rode around. The Fi2000 is the single best way to tune fuel-injected motorcycles in order to eliminate lean air/fuel mixture settings. Mercury had traditional fuel injection engines for some years before that. Good info Dawg, looking at the old filter and thinking it was OE, makes me think changing mine at the 10,000 mile area, not knowing the true working of the HD fuel injection system but knowing that the fuel system in cars / trucks, most work with a return fuel line re-circulating much more fuel through the filter than a returnless system, we find many filters are plugged at 25,000 miles some. Higher pressure than 15 psi indicates that there is an issue with the installation. Do this only for two strokes that have an oil injection pump. The ECU cannot compensate for the. Supplied with Delphi® style injectors, a billet fuel rail, 62-psi fuel pressure regulator, and fuel lines for easy installation. HD's fuel injection is from the auto-industry standard, DELPHI, the SEST, was was developed by HD, Delphi and a third performance company to simply re-program the ecm, this tuner controls EVERYTHING, air-fuel ratio, igintion timing and curve, rev-limit, injector size changes, auto-enleanment for control of engine decel backifire, and many other. it is a 1986 Fiero with a 88 V6 engine. The Delphi efi is a way better system. 2020 Harley-Davidson LiveWire Electric First Ride. Remove the fuel pump relay and jumper pin 87 to pin 30 (look at relay bottom) at the harness socket. It is normal for many high performance exhaust systems to moderately backfire or pop when the throttle is closed from mid-to-high rpm. The other is an exhaust leak. Run the bike and see if the popping has reduced. 00This video shows how an in-tank electric fuel / diesel pump can be modified to keep the existing fuel gage / sender unit and remove the faulty intank pump, replacing it with an easy accessible in-line fuel pump. The shop said it needed to be remapped but I live 5 hrs from any husky dealer so I got the JD jetting fuel injection controller. It seems like when my car is cold there is something holding it back at low rpm's. The carburetor must be clean, as fuel cannot flow properly through a dirty carburetor. If for any reason a failure is sensed, the system will go into one of three failure modes, Scott explained. Starting in 2007, all Harley models are shipped with EFI, including Sportys for the first time. For some guys, it's a symbol of American automotive performance…a genuine hot rodder's answer to the "evils" of modern fuel injection. On my car, the fuel pressure bleeds off at about 2psi per hour. On the way home her Harley started to misfire and run poorly. 2020 Harley-Davidson LiveWire Electric First Ride. the safety recall is for an inadvertent loss of electrical power. -Enables you to fine-tune the fuel mixture throughout the entire rpm range with the touch of a button. The map can be adjusted to ADD or CUT fuel (as compared to the stock EFI control) under certain circumstances. This is usually not too bad when the tank is full, but when the fuel level drops, air is introduced into the system and thus the problems. Rated 5 out of 5 by RichD from Fits under the stock cover I had the Screamin Eagle High Flow Exhaust System with Street Cannons and the Screamin Eagle High Flow Air Cleaner Kit installed on my 2016 Road King, along with the requisite ECM calibration. Engine Hesitates, Stumbles, Lacks Normal Power The computer uses this information to determine how much fuel is needed to maintain the correct air/fuel mixture, and when extra fuel is needed if the throttle suddenly opens wide. The ECU uses the data to calculate density and determine the engine's air mass flow rate, which helps the computer determine the amount of fuel needed to create optimum combustion. Have you heard others talk about how to Stage 1 kit a Harley-Davidson Sportster? Here's some basic info on the Stage 1 tuning for your Sportster, the pros and cons, and the costs. The throttle position sensor, TPS for short, is a sensor that is used in an internal combustion engine. On late model EFI bikes with 02 sensors, ESPECIALLY when using Dynojet's Power Commander V with the Autotune feature, the air injection system MUST be blocked as it will introduce additional oxygen into the system which will skew your 02 sensor's values and make it impossible to get a correct tune. Backfiring on deceleration is much more common and often occurs when exhaust and fuel mixture changes are made. A fuel-injected engine may backfire if an intake leak is present (causing the engine to run lean), or a fuel injection component such as an air-flow sensor is defective. If you want to get rid of the noise, you will need to de. – Race Cars and H2O Injection: Professional race cars (which use alcohol as an extremely efficient, powerful, safe, clean-burning engine fuel) adapted the H2O injection system after fighter planes, for both added engine power as well as safe, clean combustion. When a vehicle has a faulty manifold air pressure sensor, many different engine problems can occur. STARTING PROBLEM I have a 2000 ford f150 5. In theory Harley's fuel injection system is still an open-loop system by design. You should only add about 2 points of fuel at a time, test ride it and if you need more then add it – the idea is to fix the problem without dumping huge amounts of fuel and hurting the MPG. We want lots of oil going into that engine. The following are common issues sometimes encountered after tuning or rebuilding a Harley CV carburetor. 2020 Harley-Davidson LiveWire Electric First Ride. This will starve the fuel system, causing the bike to run lean and eventually backfire, stall and refuse to start again. The thrill of riding your motorcycle is lessened somewhat if your motorcycle tends to backfire. 2002-2007 Harley Touring EFI Models. HD's fuel injection is from the auto-industry standard, DELPHI, the SEST, was was developed by HD, Delphi and a third performance company to simply re-program the ecm, this tuner controls EVERYTHING, air-fuel ratio, igintion timing and curve, rev-limit, injector size changes, auto-enleanment for control of engine decel backifire, and many other. The following information is strictly for the Magneti Marelli injection system. If the tank is venting properly, and fuel flowing well to the carburetor, I'd clean the carb. Made me think of carbon'ed up plugs and I dismissed it at that. By Scot Gustafson. Get free shipping, 4% cashback and 10% off select brands with a Gold Club membership, plus free everyday tech support on aftermarket Harley-Davidson Road King Air Intake & Fuel Systems & motorcycle parts. The ECU cannot compensate for the. STARTING PROBLEM I have a 2000 ford f150 5. Now, when these get fouled to are faulty, the fuel system will suck fuel but the air coming in is not enough to compensate for the vacuum created in the tank. The backfire only occurs under heavy throttle in park and when it is under load and you try and go WOT. The CKP sends data to the motorcycle computer data center about the position and speed of the crankshaft, the ignition and fuel injection. Learn the differences between the Dobeck EJK, the DynoJet Power Commander, and other EFI controllers available. This walkthrough will help you understand the various causes of misfiring and identify which ones you can handle yourself. DonSPEED and Don Shalla Enterprises 3319 Fitzgerald Road, Suite 12 Rancho Cordova, CA 95742 Motorcycle Dyno tuning for fuel injected and carburetted Harley-Davidson, sportbikes and dirt bikes. He said it was sucking air. Another backfire situation occurs when the engine is running rich, meaning with excess fuel, and there is incomplete combustion, with similar result. After market fuel injection modules are available for bikes which have no adjustments. What do you think? I'm not bothered by it in any case, just making sure its normal for these. Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI. - Answered by a verified Motorcycle Mechanic. Backfiring on deceleration is much more common and often occurs when exhaust and fuel mixture changes are made. Starved: kicks sporadically (think Harley), then dies a slow painful death as it runs out of fuel. More than likely your engine is "popping" not really backfiring. I'd be cruising on the highway and step on it and it would cough and sputter and then clear up. The airflow into the motorcycle is increased because of the difference in pipe design and other specifics. Fuel injectors are resilient and does not often need replacement. IBRARY’s comprehensive booklet on obtaining the best speed & power from your Harley-Davidson 45” flathead 1937-73 solo, Servi-Car, military and civilian, including model letters WL, WLA, WLC, G, GE, etc. ThrottleBodyInjection. The common factory Harley gas cap that incorporates a one-way valve (for emission purposes) sometimes restricts air flow into the tank. Our vision for development of technology leans towards simplicity and customization. If you want to get rid of the noise, you will need to de. It goes the same for engine backfiring. Loose connections on the exhaust system, lean condition in the fuel system, and cables adjusted improperly not allowing the fuel to shut down completely. 85 K5 Blazer w/MAF TPI setup off a 87 Firebird. Electronic Fuel Injection If you own a fuel-injected Twin Cam, it doesn't matter whether you upgrade the engine with a mild free-flowing exhaust system and air cleaner or install a stout 120-plus cubic inch engine, the entire combination will be controlled by the engine's Electronic Fuel Injection (EFI) system. What causes it. Backfiring, is extremely rare these days with electronic ignitions and the high reliability of engines. HARLEY-DAVIDSON SPORTSTER 883 (1993-on) Review. But most forget that they will have to re-tune their motorcycles to avoid exhaust popping, spitting and backfiring. The purpose of this article is to explain how open and closed loop o2 works and how to tune and modify these tables. Carbureted engines usually have a range of fuel and air circuits and other strategies to vary the proportions of fuel and air throughout a wide variety of engine speed and load conditions. sparkplugs/wires. A partial vacuum in the fuel tank can reduce fuel flow and bring about a lean condition. IT progressed to backfiring and popping at in town acceleration then not being able to stay running at all. Notice: Undefined index: HTTP_REFERER in /var/sentora/hostdata/zadmin/public_html/e-imza_emomerkez_net/s739tp/9wc. It is backfiring through the manifold and has a hesitation off idle and through about 2000 rpm. It’s simple to install, works with any exhaust system—stock or aftermarket, and requires no additional dyno testing or mapping. Hot Licks Exhaust Flamethrower Kits - Make your car, SUV, motorcycle or truck stand out with a blast of heat with our single and dual exhaust flame thrower kits. This Electronic Sequential Port Fuel Injection system was introduced in Harley Davidson Softail motorcycles in 2001,. Instead, it often leads to "backfiring" or "popping" when engine braking or decelerating. The is an introduction to tuning with a programmable electronic fuel injection ECU. The VFC is programmed for your bike's combination of parts using three buttons located on the front of the unit. If the pipes don't have enough baffle in them it will probably keep doing it. Since your car is fuel injected, you probably have the Exhaust Gas Recirculation system hooked up, and this is where most of the backfire-causing exhaust leaks come from. Apply a liberal amount of BS repellent to skin before reading anything by anybody. – Race Cars and H2O Injection: Professional race cars (which use alcohol as an extremely efficient, powerful, safe, clean-burning engine fuel) adapted the H2O injection system after fighter planes, for both added engine power as well as safe, clean combustion. I was riding a Vespa GTS300SS before, which I used to commute to Uni everyday, until I. Just install the BoosterPlug and go our and enjoy riding your bike. the engine only has about 50000 km on it and ive been working on getting it running. Even rode around. Re: When year did fuel injection begin in outboards? Yamaha came out with their fuel injection in 1997, the same model year as the debut of Evinrude FICHT and Mercury Optimax which are theoretically fuel injected motors. Dry kits are limited because your fuel injectors and fuel pump can only supply so much fuel at this high pressure. Even rode around. Hardly any engine braking. In "Go EFI Tuning," Idle control does not show "Decel open IAC" on my handheld controller. Ethanol has less energy than gasoline. Faulty fuel injectors on late-model cars will make their presence known by causing a cylinder to misfire. ThrottleBodyInjection. Yes the bikes are fuel injected and some people assume there might be damage or that its just not correct to use throttle while starting a fuel injected bike. If the tank is venting properly, and fuel flowing well to the carburetor, I'd clean the carb. Find CHEVROLET 6. The issue is the fuel line inside of the tank 'rubs' on the inside of the tank from engine vibration. Jump to Latest Harley releases updated versions of there stock programs all the time, I have version "D" in my, and it helps get rid of many of. If you make a vehicle's pipes SHORT enough, with low enough back pressure on a bike (or car) it can suck enough air in to backfire even a fuel injected engine. Click here to sell a used 2007 Harley-Davidson FLHR Road King or advertise any other MC for sale. The common mixtures AT THIS TIME are E-10, E-15, and E-85. spark plugs are brand new. But when a fuel injector cracks or breaks, replacement is necessary and it can be expensive. The airflow into the motorcycle is increased because of the difference in pipe design and other specifics. I am currently trying to diagnose a problem with why my truck is running poorly. July 3, 2012. Harley Davidson:. The backfires are mainly caused (in a normally functioning 4 stroke engine) by leftover fuel that was not burned (combust) inside the cylinder and goes out through the exhaust valve. Air, Fuel and Spark are needed in proper amounts at the proper time. The engine backfire on deceleration is also caused by the too lean air/fuel ratio - A lot of people think that the backfire/popping in the exhaust is caused by too rich mixture, but it's actually the other way round. Starved: kicks sporadically (think Harley), then dies a slow painful death as it runs out of fuel. The most common cause for this problem is a weak fuel pump which cannot supply the volume of fuel needed for the injectors to produce a proper spray pattern or deliver the amount of fuel needed for engine acceleration. Troubleshooting the Harley CV carburetor. Cobra Fuel Injection J&P Cycles - Aftermarket Motorcycle Parts Find Cobra Fuel Injection at J&P Cycles, your source for aftermarket motorcycle parts and accessories. • Nearly every fuel-injected motorcycle can benefit from the installation of the Fi2000R• Better throttle response, no backfiring, and smoother cruising are just a few of the areas improved by the Fi2000• When your engine has the proper air/fuel ratio metered to it, it can perform to its potential, run cooler and be a much more satisfying ride• Comes preset for your specific model. Dyna Fusion EFI Fuel and Ignition Controller by Dynatek®. Stalling And Backfiring. This is now fixed. The thrill of riding your motorcycle is lessened somewhat if your motorcycle tends to backfire. Get the tank fuel level to about 1 gallon so the holes (if any) will be above the gas level. All-new Honda CRF450 boasts fuel injection. Use the following suggestions to pin down your problem areas so that you can stop your motorcycle from backfiring. What happens with modern fuel is the boiling point is lower, and you can get vapor lock even when the engine temperature is normal. Yes the bikes are fuel injected and some people assume there might be damage or that its just not correct to use throttle while starting a fuel injected bike. There are several ways to check this. But when a fuel injector cracks or breaks, replacement is necessary and it can be expensive. Troubleshooting the Harley CV carburetor. If you want to get rid of the noise, you will need to de. This is what we are going to discuss. 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. Other causes of backfire are bad or weak fuel pumps, low fuel pressure and clogged fuel filters. First few days there was some backfiring as the carbon built up in cylinder's dissipated. I can wait it out or floor it and it will stop. the bike is fuel injection. As I am at an idle I smell rich exhaust, like I still had the carb on. Stripped down to the basics, it’s a traditional motorcycle that is part cruiser and part retro sport bike. Generally, a backfire is caused by an imbalance in the air to fuel ratio. Victory engines debuted with five-speed transmissions (later six), single overhead cams, dual connecting rods, hydraulic lifters, and fuel injection; most fuel-injection components are standard GM parts. All Twin Cam & fuel injected Evolution engines are fitted with single fire ignitions. Other causes of backfire are bad or weak fuel pumps, low fuel pressure and clogged fuel filters. All Nitrous kits for Harleys® come with billet aluminum brackets to mount the nitrous bottle and the fuel pump. There are 13 complaints filed for the 2006 HARLEY DAVIDSON FLHTCUI. Just because your exhaust is popping, doesn't mean there's anything wrong. By disabling the clean air injection one can nearly eliminate all backfiring. We the top 10 common EFI mistakes and how to patch them up so you don;t make a costly mistake. Sometimes this stalls the engine at idle. By Art Friedman. Find many great new & used options and get the best deals for Cobra Fi2000R EFI Controller #692-1600 Harley Davidson at the best online prices at eBay! Free shipping for many products!. This is the mid-level shop position for the R&D department. This easy method is a excellent Harley tech tip that applies to all Harley designs from 1989 to 2006 that use the CV (frequent velocity) fashion carburetor. Shop the best Harley-Davidson Fuel Additives for your motorcycle at J&P Cycles. Since 1938, Edelbrock has manufactured its core products in the USA for quality & performance. What Causes Backfiring on Acceleration? Backfiring during acceleration occurs when ignition takes place in the intake or exhaust instead of the combustion chamber. Cobra fuel tuner Motorcycle Parts Bizrate Closed-loop Fi2000R O2 digital fuel processor is designed to work with all exhaust systems on the market today that are equipped with. He said it was sucking air. If you are getting a poor pickup or hesitation off the line, or a lot of backfiring on deceleration, then you need more fuel through the pilot jet. The carburetor must be clean, as fuel cannot flow properly through a dirty carburetor. biz has an efficient motorcycle classifieds. but other times the truck will start then just idle off. (12) Check oil pressure gage. Your “obsolete” 45” side-valve is capable of surprising speed & power, without loss of original appearance or reliability. DonSPEED and Don Shalla Enterprises 3319 Fitzgerald Road, Suite 12 Rancho Cordova, CA 95742 Motorcycle Dyno tuning for fuel injected and carburetted Harley-Davidson, sportbikes and dirt bikes. It was developed by a home tuner for home tuners. All latter 1999 Fatheads and all 2000 Fatheads no longer have any problems that are known of at Harley Davidson or their dealers at this point in time. This is what we are going to discuss. Why you need a tuner when you upgrade your pipes (Vance & Hines) and a high-flow air filter (K&N). But when a fuel injector cracks or breaks, replacement is necessary and it can be expensive. 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. biz has an efficient motorcycle classifieds. Your ride has the later Delphi injection system, and it can be set up to run better than any carb by a competent tuner using SERT, PCIII, DTT, ect. They need some back pressure to run right. Other causes of backfire are bad or weak fuel pumps, low fuel pressure and clogged fuel filters. 85 K5 Blazer w/MAF TPI setup off a 87 Firebird. The leak itself is the most dangerous aspect. Just like any other digital control system, they can be 'open loop' or 'closed loop'. If you have a service related question, please contact your authorized Yamaha dealer or contact Yamaha Golf-Car Company at 1-866-747-4027. In any case, as much as I don't like it, there's a often a difference between Harley riders and other motorcyclists. By disabling the clean air injection one can nearly eliminate all backfiring. Went out for a ride with my club last night and now it seems to do it at certain engine revs and will now do 5 or 6 pops in a row. By design, there’s really only one thing that can fail on a regulator, and it's pretty rare. Run the bike and see if the popping has reduced. Ads are free. My wife’s 2005 FLHTCUSE2 began to develop problems a few weeks ago. You could have an air intake leak. Since electronic fuel injection (EFI) appeared on Harley-Davidson baggers in 1995, for many of us, the thought of a computer replacing the carburetor's gas and air mixing duties has been a difficult proposition. Arguably the most important instrument in your day-to-day activities is your car. BoosterPlug Fueling Enhancement ECUs Harley Davidson Fuel Injected Motorcycles BoosterPlug Fueling Enhancement ECUs for Harley Davidson Fuel Injected Motorcycles The BoosterPlug is an effective and cost efficient way to cure the fuelling problems common to all modern fuel injected Motorcycles. This restriction can result in a partial vacuum and fuel flow restriction. A simple way to test the battery terminal is to start the car when cold then immediately feel the battery terminals. With help from the tech experts at Summit Racing, we're. I'm thinking its running lean. Completely random backfire through throttle body. Better throttle response, no backfiring, and smoother cruising are just a few of the areas improved by the Fi2000. Another sign of a Crankshaft Position Sensor Failure is the constant stalling and backfiring of the engine. After market fuel injection modules are available for bikes which have no adjustments. Even my (omitted) backfires on decel and its fuel injected. Occasionally a diaphragm does fail. Single fire engine tend to run more smoothly below about 2800 rpm and are less likely to backfire through the carburetor. If the idle speed is wrong, remove the air cleaner cover and. It’s simple to install, works with any exhaust system—stock or aftermarket, and requires no additional dyno testing or mapping.