motorcycle fuel injection problems

Why following your passion can be a great idea — as long as there’s product-market fit. 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. KTM RC 125 Vs Yamaha YZF-R15 V 3.0- Comparo, Why Pulsar 180F Sucks- A Critical Analysis, A Timeline Of How Hero Karizma Was Destroyed, Yamaha YZF-R15 V 3.0 Vs KTM Duke 125- Comparo, Detel TRED- World’s Most Economical Helmet Launched, Motorcycle Fuel Injection (Fi) System Explained. 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. Hello good guys, I’m in a car team and in a few days we’ll start with engine bench sessions. In motorcycles (and cars), the “measuring element” is usually an oxygen sensor. Featured on Meta Visual design changes to the review queues. Discussion Starter • #1 • Jul 21, 2007. The switch from closed loop to open loop is effectively instant. Page 1 of 2 1 2 Next > ladge99 Member. Most modern motorcycles come equipped with a fuel injection system which requires fuel to be delivered at high pressure. And you will usually not be able to adjust the idle level in any way. These are an interface between the oxygen sensors in the exhaust and the ECU. A third way is to install an O2 sensor modulator. You made reference to an issue (bike jerking) which usually results from the ECU switching between open and closed loop, which is exactly what I’m experiencing. Closed and open-loop conditions apply only to fuel-injected engines. Hence after learning both the advantage and disadvantages of carburetor vs fuel injection system you can see both of them have different advancement and weaknesses. However, we were able to overcome these problems and develop a system In the late 1970’s Kawasaki Z1000G-1 Classic was a … Browse other questions tagged motorcycle fuel-system fuel-injection or ask your own question. But most importantly: stay safe, and stay alive. How to Fix Fuel Injector Problems. You’ll go a bit faster and smoother, but you won’t be saving the planet — and if you’re in a tightly emissions controlled place, you might be breaking the law and unable to re-register your motorcycle. Just one problem which is making me loose hope. It get even worse if the start talking about remapping and reprogramming. Developing fuel injection systems for smaller motorcycles presents several problems not seen in automobile systems, and considerably more demanding limitations than those applying to systems for large-displacement motorcycles. The first way is to reprogram the motorcycle’s ECU. In most cases, a high-output fuel pump is needed to meet the demands of the system. Airhead, Hexhead, Oilhead… What are the BMW motorcycle engines? In turn, when fuel additives aren't sprayed into the intake manifold, they can leave a residue on the injectors that burns and becomes crusty. RB Racing is the only motorcycle fuel injection company that designs and manufactures its own electronic controls, software, throttle bodies and wiring harnesses Motorcycle Fuel Injection Note: As of June 2018 these are no longer being shipped or manufactured by RB Racing. Although fuel-injection can be quite a complex system at the design and engineering level, in concept, it's actually pretty simple. Others have an air adjusting screw. 4. I ride an '06 Streetbob with a stage 1 upgrade and recently have had a problem with my rear cylinder. The Inline-4 Car Vs Bike Engines- Similarities & Differences, Why all of us are wrong about the BMW G310R, BMW G310 GS Vs Kawasaki Versys X 300- Comparison Review, The Cons of Royal Enfield Himalayan and BMW G310 GS. Good luck My feeling is that it may have happened in a start up a few days ago. Find a Dynojet Power Commander for your bike on Amazon. While a few carburetor-equipped bikes are still on the market, the vast majority of street bikes are now equipped with some form of electronic fuel injection, which despite the complication it adds, is both a better way to go, and undeniably here to stay, protests from the Luddites … This takes a long time to happen though generally so it is more of an issue with high mileage cars and different injectors may be more susceptible than others. It runs so rich when I start it (very easily) and runs … Kawasaki Mule 4010 Fuel injection problem. Different motorcycles obviously have different fuel maps. For example, if you’re idling and the sensors are warm, you’ll be in closed-loop mode. Really, best fix is to take it in and have the TPS zero function reset. Suzuki Gen 2, ZX14 1000, GSXR-1000 to 2006 Arctic Cat, Nytro. RB Racing is the only motorcycle fuel injection company that designs and manufactures its own electronic controls, software, throttle bodies and wiring harnesses Motorcycle Fuel Injection Note: As of June 2018 these are no longer being shipped or manufactured by RB Racing. Typically cold start idle issues are the result of a lean mixture. The tuning also targets different things. Not quite as often as how often fuel is injected and combusted, but quite a lot. The people who tuned the engine — usually the engineers who built the thing, but sometimes an aftermarket tuner — figured out how much fuel it needs at different combinations of those variables to make the motorcycle respond well. As motorcycles have become more complicated diagnosing problems has … My wife thinks I'm nuts, because this Ive been tuning mine with the JD tuner over a few rides now and have to say im quite pleased with the way it runs from off idle and all … These are the parameters to take into account: ECT lockout (ºC), Timer Lockout (s), RPM Lockout High, RPM Lockout Low, MAP Lockout > (kPa), FTrim Limit -/+ (%), Gain Control. see reply by Mfolks about Larry Cavanaugh Racing. When you encounter problems with your fuelling, you first think: How can I modify the fuel map? There's a big likelihood that your fuel injectors are clogged if you see most of these problems happening in your vehicle. $69.95 drop in injector using NEW genuine Bosch cores. Even though fuel injection and combustion is happening hundreds of times a second, the lambda sensor is an analogue, organic device. The fuel pump is If there’s one thing I want you to take away, it’s this: closed loop is about saving fuel and being environmental, and open loop is about performance and responsiveness. But considering everything fuel injection is the best solution for most of the kind of motorcycles. But how much of each do you need? Changes in fuel mixture happen many times a second. This can be done by adding a fuel system cleaner to your vehicle’s fuel tank and working it through the system. I don't know exactly when it started coming on. This week it’s Kawasaki's introduction of the first motorcycle fuel-injection system. I love learning and sharing what others might find useful. Too bad, sucker, here’s your fuel! But before getting into all the ways to apply fuel maps to your motorcycle (or car), I want to quickly go over understanding what open-loop and closed-loop modes are, because it really helps with understanding what has gone wrong and how to fix it. Related. In closed loop mode, the engine listens to the lambda sensor to adjust fuel/air mixture. Even the most knowledgeable technicians weren’t born that way and started out learning the basics. But now more and more two wheeler companies are looking into fuel injection as an option in their bikes simply because it is the new tech that has come up. small-motorcycle fuel injection systems. Have replaced fuel pump twice and now its going out again. Probably one of the most controversial discussions among motorcycle enthusiasts is the difference between carbureted and fuel injected bikes, … That's what I'd do for you. Motorcycle Fuel Injection Handbook Paperback: 159 pages Dimensions (in inches): 0.38 x 10.60 x 8.22 Publisher: MBI Publishing (July 1, 2004) ISBN: 076031635X I absolutely love books like the Motorcycle Fuel Injection Handbook! The fuel injection is controlled by the ECU in milla seconds. It can be a fraction of a second or a few seconds.​. Oh, the mixture’s too rich? Because the lambda sensor is an organic device, it can’t give as fast feedback as a digital device would. Specifically, I’ll be focusing on fuel injected engine maintenance, which really is 99% the same as maintenance for a carbureted motorcycle. If the engine does not get enough fuel sprayed into due to a clogged injector, then the engine will misfire as you drive. Thanks for the great article! Some motorcycles might pursue a linear power curve, some might pursue outright power, and some might optimise for low-down torque. The fuel pump in the tank is not running. But you’d use a lot more petrol and you’d never pass ever-tightening emissions standards. In a nutshell, closed loop is where the engine operates with a feedback loop. One of the most common problems is over-aggressively switching to closed-loop mode. Lots of oxygen means the fuel got fully burnt with oxygen to spare (too lean); no oxygen means that there wasn’t enough oxygen to burn all the fuel (too rich). The too lean air/fuel mixture on the standard bike will make idle and low speed running weak, and the throttle action will be horribly on/off like. Motorcycle Fuel Injection (Fi) System Explained. i can turn it off and turn the key on without starting it and let the pump run and then start it and it will run … Petrol is complex, but it has a basic structure of four carbon to 10 hydrogen atoms. You have hesitation as you accelerate hard, usually in the low-mid RPM range: This is the computer being hesitant to enter open-loop mode. The ECU is trying to lean out the mixture as much as possible without damaging the engine, using inputs from the lambda sensor about how well the fuel combusted — as well as other inputs (see below).

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