Motorcycle sputtering fuel injected It’s similar to sipping those last few Took the bike for a quick test ride, and it seemed ok. Last edit: 27 Dec 2010 19:52 by newOld_kz1000. Replace if necessary. is it the jetting? if it is how do i clean the jets? i am new to engine worrk Is this bike fuel injected ? If not, are you using the choke to start it ? Either way, a healthy dose of carb cleaner wouldn't hurt. you will want to run it in the on position when you fill the tank and when it gets low after riding a long distance it will start sputtering and try to run out of fuel. Read full is a 1980 Fuel-Injected kz1000 -- DANGEROUS? KZ1000 Motorcycle Service Manual: Kawasaki part number 99924-1006-05 and Could the weak battery explain the plugs and sputtering? 1978 kz1000 A2 with Kerker 1980 Z1 Classic with Kerker. Fuel injectors can become clogged with dirt or debris over time, leading to an improper fuel-to-air ratio and ultimately sputtering When your motorcycle begins to idle roughly, it’s often a telltale sign that something isn’t right with the fuel injectors. carb will bed cleaned or rebuilt. A modern fuel injected bike should not have this issue, or the issue the first person to reply has. Brand new dhz 4stroke keeps fouling plugs And sputtering bad after a little ride, the bike will start to cut out and sputtering when I open the throttle and the spark plug with be insanely black and dry. when i give it not even 1/2 gas and right know i slow back down, it keeps on sputtering. Around 5K rpm, sputtering/lurching on the highway, and idling randomly from 900-1100rpm (I'm set to 1400-1500. I have an issue with my bike sputtering at mid rpm under full load. Float level too high, gas is trapped in vent tubes (install T-vents) Bike starts but won’t take throttle without sputtering. that is when the reserve or (RES) comes in. if i spray ether into. I know it has something to do with the carb/jetting but not the specifics. There are several reasons why a motorcycle sputters. Bike suddenly starts sputtering/gas flows from vent tubes. Sputtering Engine. Check the following components: Fuel filter: Ensure it is clean and free from debris. (Here comes the arguments). So a couple of weeks ago I bought an RM 85 and put a fresh new top end kit in it (weisco). First off I would pull the battery terminal, and let it sit for a bit, about 20-30 min should do it. More Mc Garage. Has a lot of black on plugs etc from running rich only. Thread starter sonofthunder What causes fuel injected engines to sputter? Fuel injector Votes: 1 100. It’s about better performance, Signs of a failing fuel pump in a Harley Davidson include reduced engine power, engine sputtering or Fuel injected Harley won’t start? Here are the most important things to look at to get your motorcycle back up and running. 2003 Road Police Fuel Injection - have had bike "sputter" 3 or 4 times now when pulling out from stop sign - twice on a I have a 2003 Harley Road that is fuel injected and it sat for a couple years and now won't start. Motorcycle Carburetor Vs. There might be a problem with a coolant temp. If the spark plugs are worn or dirty, they may not be able to ignite the fuel properly, which can cause sputtering. Can’t figure it out, and suggestions would be much appreciated thanks Another common cause is faulty spark plugs. Another thing it will do is idle fine one minute and then not Something is wrong, and something is confusing the computer. ) I noticed RPMs would fluctuate while the sputtering happened, but I'm assuming that happened before too, just didn't notice. Fuel Injection. 9. They introduce their first fuel-injected motorcycle in 1995, and this move isn’t just for kicks. If it IS fuel injected, a shop visit might be needed if cleaner in the gas doesn't help. Then using a cheap auto parts store Fuel Injection test kit along with some new fuel line and some jumper wires I was able to set my fuel tank on my work bench and start my bike. It's actually the same part, just hooked up to a different place on the other end. The carbureted Monster was just as happy after a minute of warmup as the fuel injected ST2. The carburetor or fuel injector are delivering smaller amounts of fuel which is what causes the sputtering. i then fill the tank and the bike runs excellent. or similar. To understand how this works, let’s first look at how fuel ratios work in the engine combustion chamber. Mc Garage. However, it happens to newer fuel injected machines too. If a motorcycle is running lean, that means there’s too much air and not enough fuel in the air/fuel mixture in the combustion process. when the gas tank is almost half empty approximately 50 miles the bike starts to sputter and spit and sometimes shuts off. Just started having trouble with bike sputtering and wants to die - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. A quick look at the pros and cons of carbs and EFI. This issue is caused by: Incorrect timing; Too much fuel; Loose exhaust pipe; Too short of exhaust; Too little fuel; Intermittent spark; I have For instance, that dead engine can be the result of mishaps with one small component of the vehicle: fuel injectors. When your tank runs out of gas, your motorcycle will first start showing signs by starting to sputter. Ive checked over all my wiring and have not found anything wrong. Debris or build-up in the carburetor can restrict fuel flow, leading to irregular performance. Note always push or pull your throttle handle slowly to position avoids gas load up causing sputter and backfire. Rough idling is characterized by the engine juddering or stalling when it’s running at a low speed, or when In mid rpm's it like to sputter, after few seconds of sputtering it goes in to When your tank runs out of gas, your motorcycle will first start showing signs by starting to sputter. I have recently put an FMF q stealth on it, but noticed it before. Big Wanda. Similarly, clogged fuel injectors in a fuel-injected motorcycle impede the precise delivery of fuel to the engine. If the fuel filter is clogged or the fuel pump is not working properly, the engine may not be getting enough fuel, which can cause sputtering. Pilot jet too rich. Time to pay attention. As fuel evaporates, it thickens and becomes gummy. 2023. put the selector in that position and get to a gas station quick. Touring Models . When the scenario is the opposite, that is too much air and less fuel, it’s called a “lean” mixture. Main jet Hi, I have a 2003 ktm sx 250 that sputters when I give it gas at low rpm. The issues we have covered above mostly affect carbureted For fuel-injected motorcycles, clogged fuel injectors can cause sputtering on acceleration. 0% Vapor lock Votes: 0 0. By Ari Henning. I've listened in the fuel tank for spiting sounds but fuel builds an holds pressure, also filling tank does not stop problem, plugs are sparking nice. Fuel injectors: Clean or replace if clogged or malfunctioning. This bike now runs but it sputters while accelerating, but once the rpm is high enough, it runs smooth. This is why so many, especially in the cruiser market, keep Dynojet in business through purchases of their "Power Commander" product! Generally, the carbs or ECU/Fuel Injectors are setup and tuned in the factory for the design and back-pressure of the OEM exhaust system. Rode to work the next day (8 miles each way) with no problem. Something might have come unplugged with the drop. . The fuel injected ST2 will still die when cold if I turn the cold start lever off and close the throttle all the way at the wrong time. Thanks. While relatively uncommon, Harley Davidson fuel injection problems can be a real buzzkill, and if you own A motorcycle backfire happens because of the presence of uncombusted fuel in the exhaust pipe. The motorcycle will likely idle and/or run sluggish, the engine and exhaust pipes may become hotter Adjusting the idle speed on a fuel-injected Harley Davidson is an important aspect of motorcycle maintenance that ensures the engine operates smoothly and reliably. . I haven't done a full throttle plug chop with a new plug but I have changed the plug and changed the main jet from 182 - 188 it doesn't make a difference, it still cuts out. If there is a problem with the air intake system, such as a dirty air filter or a vacuum leak, it can cause the engine to run lean, leading to sputtering. Harley Davidson Motorcycles. 0% Gas line I have a 2003 Road 88 cubic inch fuel injected. 24. Reduced fuel efficiency; Step-by-Step Troubleshooting Step 1: Check the Fuel System. Professional motorcycle mechanic since 1978. Unlike carbureted models, fuel-injected engines require precise adjustments made through the motorcycle’s electronic control module (ECM) or by manipulating settings at the throttle body. thanks in advance paul. The most common reasons are carburetor issues such as a vacuum leak, fuel leak, or tuning issues. See if that fixes it. Bike runs hot/feels slow and flat on straights. Fuel stabilizer is usually good for some months, maybe a year. Took it out for a ride with the GF. Now thinking off inspecting all the sensors attached to the fuel injection? When you’re cruising on your Harley Davidson, the last thing you want is your ride to be marred by a sputter or stall. Start by examining the fuel system, as issues in this area are a common cause of sputtering. I then looked into the fuel pressure and decided Triumph wants way to much for simple tools and parts. BTW, this time I had at least 3/4 tank of gas left. Updated: July 1, 2020. And stabilizer does not stop fuel evaporation. Water in fuel. We rode about 30 or so miles. Fuel injectors: Clean or The air-fuel mixture is crucial for the proper operation of the engine. any ideas. Bike was running well. it has been sitting there for 1 year. Fuel-related issues can also cause sputtering. Vintage motorcycle restorer. When the combustion mixture has too much fuel and less air, it’s a “rich” mixture. 0% Wrong codes downloaded Votes: 0 0. Not sure what I should do. Gummed up carburetor bikes are bad, gummed up FI systems are worse The fuel knob has 3 setting on it. It’s similar to sipping those last few In this guide, we explained the motorcycle sputtering on acceleration and the leading causes, such as carburetor issues, blocked vacuum lines, problems in the fuel system, and many other reasons that result in the Start by examining the fuel system, as issues in this area are a common cause of sputtering. Most fuel injected motorcycles do start up in a "fast idle" mode. I went on Ebay and picked up a used fuel line for about 12 bucks. Stopped for gas, rode about a mile, made a right and it started sputtering just like before the TPS replacement. Debris in gas or carb. Debris in main jet. On a carbureted car it has the Over time, fuel injectors can become dirty or clogged due to: Accumulation of fuel additives; Using low-quality gasoline; Debris from the fuel tank; If the fuel injectors are not delivering an even and constant stream of i have a 2003 yzf250 and it is sputtering. Fuel System Issues: Your motorcycle’s fuel system is often the culprit behind unstable idle speeds. If your emulsion tube and high speed needle are worn the high speed jet is going to release droplets of fuel that WILL NOT BE ATOMIZED and thus the sputtering. As the name suggests, fuel injectors ensure that fuel is carefully injected into the engine for combustion. It did it for a minute or two. Other If you are rolling on a newer motorcycle, you probably are riding a fuel-injected bike. Uggggggggh, what do I do next? If the engine is pulling hard up a hill and its not completely revved out then it won't sputter. i have a 2001 harley fuel injected fatboy. Certified Professional Motorcycle Mechanic since 1983, Published Motorcycle Technical Writer, Fuel injected vehicles that sit often have stuck or gummed-up injectors and stuck, inoperative fuel pumps. sensor. Good luck. Motorcycle Repair, My buddy has a 2004 Suzuki Volusia--one of the carburetor models, not fuel-injected--, At the beginning of this riding season, he was experiencing an issue with sputtering (similar to when the engine was running too cold), so he cleaned the carburetor and replaced the main jet. Stuck float check valve. It is worse the higher By chatting and providing What are the advantages (if any) of a fuel injected 883 over a carbureted 883? I have a 2008 883L and am looking at a. qvbp kqv arj rdqxc zwjqg rhymf qsvmy qgvvtw vvcs irfnps