1 d
Harley backfire on deceleration?
Follow
11
Harley backfire on deceleration?
The acceleration backfire is coming from the carb and rarely is heard in the pipes. If it guits popping, it's too lean. The bike was popping on decel but otherwise running strong, no lean spots, etc. Hi, all you ignition gurus out there I have a '99 wide glide. 1 post · Joined 2023 I have a wide glide that is backfiring and popping when I accelerate. Check around the heads to see any obvious exhaust soot on the pipe and check the rest of the system of any cracks. I had this issue when I started riding my Ultra. I have a 98 Dyna with stock Evo fairly new reman at HD in Sept 2010. This is an older thread, you may not receive a response, and could be reviving an old thread. Most common cause is use of ported (timed spark) vacuum for spark advance. My '04 Defender did both when I got it. When you decelerate, the intake valve closes sooner, which might leave some unburnt fuel in the cylinder. The acceleration backfire is coming from the carb and rarely is heard in the pipes. Lately I noticed engine backfires thru exhaust, more than normal, at low rpm's and on deceleration. On my '66 manual the backfire on deceleration happens when I get lazy and rest my foot on the accelerator pedal. The stock pipes are not straight-through baffle design, so you rarely/never hear it. Pulling a load the other day i pulled the auto trans down into 2nd to help a little with the braking wile droping down in to a long canyon road. True backfires are very rare, and that’s a good thing, since they can blow the throttle body off the engine and light. Installing new exhaust, incorrect octane and screws can also cause this. The best way to check whether the exhaust header gaskets or bolts are causing a popping sound on deceleration is by removing the exhaust and inspecting them for leaks Cracked Vacuum Lines. Hey guys I'm new to the world of harley's (always ran sportbikes) and I just installed a se heavy breather, d&d fat cat, and a thundermax tuner on my 2011 road glide custom and now I'm getting a backfire through the intake if it idles long or if I coast to a stop. Jun 9, 2014 · 141 posts · Joined 2014 Actually your tuner should add fuel during decel to stop popping and backfiring on decel. Mar 7, 2015 · I have V&H straight shot slip-ons, Screamin Eagle stage 1 intake and the dealer did the remap. If it's just a little popping then it could just be the type of exhaust that you have. When the RPMs are high and I let off the throttle I hear the back firing. Check the engine for any damaged or faulty parts, such as the carburetor and spark plugs. Backfire (afterfire) on deceleration. Pops on deceleration. Nov 4, 2018 · guide to using sept tuner to adjust excessive exhaust decel pop from your bike, episode 2 tuning serieshttps://youtube. Even with a perfect seal you may still get decel popping if your mixture is overly lean. 0 turns out on the fuel screw, you are close enough. Jan 30, 2020 · Doc Harley from the Service Clinic at Low Country Harley-Davidson to help you with the health of your motorcycle! This week he answers a viewer's question ab. Backfire in the carburetor is a condition that occurs when the air-fuel mixture in the engine combusts outside of the engine. If your fuel pump is going out or your fuel filter is clogged up your fuel pump may not be able to send enough fuel into the air intake of your engine cylinder. The easiest ways to check are with soapy water around the head pipes or using incense or a cigar and see if their is any disturbance in the smoke. Have installed Rush slip-on mufflers with 1. com/@ALCHEMOTO?sub_confirmation=1 Aug 19, 2009 · Highlight the zero percent column and instead of using negative numbers, try adding fuel to the map. The speed sensor isn't a feeding sensor to the ECU regarding fuel application. To check intake seals, spray a little carb cleaner around the seal when bike is running. Had a Harley that had the front cylinder header pipe come loose during a ride, started popping and sputter like a sum'bitch, took her home and tightened the nuts back up (one had actually rattled off and needed to be replaced) and she ran perfect again afterwards. I agree. The BoosterPlug will minimize the backfire and popping in your motorcycle exhaust when you close the throttle. Deceleration backfire. The popping sound is from unburnt gas in the exhaust that is ignited by the heat. This causes a couple of things to happen. Mar 11, 2007 · Put in too much fuel and the RPM rises, and too LITTLE the RPM sags. Hey guys! Not too long ago i picked up a 2013 Ktm 350 exc-f, keep in mind the bike only has 1,200kms on it (750miles). This will take fuel away from the decel area, and should* eliminate or at least help with popping. If you don't know the difference between these two terms you could be JACKING UP your bike! Or maybe you've already diagnosed what's going on, but aren't sure what to address first?? The decel pop, technically known as 'deceleration popping', occurs when unburned fuel escapes the combustion chamber and detonates in the exhaust pipe, particularly in high-flow exhausts that allow more fresh air to be pulled into the pipe. Took care of a decel popping. It is a popping resonating sound generated by a lean condition on deceleration. In a report released today, Gerrick Johnson from BMO Capital assigned a Buy rating to Harley-Davidson (HOG – Research Report), with a pric. Valves too 'loose' cause backfiring as you describe. Idle is ok, at about 900-1000. Another thing to check for is a clogged up pilot jet. Don't miss out on special offers from us and our trusted partners. During deceleration with 0% throttle the A/F mixture is too lean to burn in the combustion chamber so it is expelled into the hot exhaust where it is ignited. The decel pop is worse than it was with just the Rush mufflers alone. Backfiring is usually the result of a lean air-fuel mixture where there's too much air and not enough fuel. Set the float, carefully, screw this up and the rest is just wasting time. My Honda Shadow Backfires / Afterfires on Deceleration. The 14 and older exhaust are known to crack the rear head pipe, and also get pin holes in silencer. Quick summary: 1) Verify no exhaust leaks. This can be reolved by either going back to riginal pipes or instaling. It seems to clear up at higher rpm's, 4k rpm and up. Behind the round cover on the cam case. Exhaust Popping on Deceleration. The beauty of using Quick Tune is you do not need to. since the swap the engine starts well and runs strong but backfires on deceleration. This causes a couple of things to happen. The popping sound is from unburnt gas in the exhaust that is ignited by the heat. A deceleration lane is a traffic lane on an expressway that gives a driver a brief opportunity to slow his vehicle prior to reaching an exit ramp. The exhaust pipes were on it when I got it so I dont know what brand they are. 041" wi brass washers to stop the exhaust pop & get it running OK. If the fuel-to-air ratio is not correct, unburned fuel. com/@ALCHEMOTO?sub_confirmation=1 Highlight the zero percent column and instead of using negative numbers, try adding fuel to the map. We’ll say anything to bribe a kid to take their medicine, but telling them it’s candy has the potential to backfire. The motor is a mild 460 built for towing torque. 10-10-2015, 08:32 AM. If your golf cart is backfiring, it may also be due to issues with the throttle plate or carburetor. Backfire during deceleration is often caused by excess fuel in the cylinder. The gaskets are leaking air into the exhaust. whoville chattanooga Backfiring could also result from poor timing. This causes a couple of things to happen. Starts to backfire on decel and then cuts off on acceleration. Saw some older posts here but was wondering if this is due to the aftermarket pipes and if putting on the stock ones (which I have. Backfiring during acceleration typically signifies air in the intake system of a Harley Davidson. Installed Harley Street Cannon mufflers on my 2015 Heritage Classic. Incorrectly adjusted carburetor settings. The popping sound is from unburnt gas in the exhaust that is ignited by the heat. Advertisement The 1978 Harley-Dav. Before you worry about which bike to buy, you need to learn how to ride it so which is the best bike to learn. Progressive new legislation meant to improve gender diversity on India’s corporate boards risks being undermined by a traditional bedrock of business in India—family A weaker yuan could dampen the effects of US tariffs. Strong hiring, along with a deceleration in pay growth, contributed to 296,000 jobs in April, according to the ADP National Employment Report. com/power-commanderFor more insp. May 22, 2012 · I have an 02 Duece, Screaming Eagle heads, power command, 208 cam, large bore kit, 30k miles. The piston comes up and squeezes the fuel/air mixtureCombustion Stroke. Clean pintle for IAC motor, at 12noon, just inside throttle body. I explained what was going on and asked if maybe the computer was bad - backfiring is typically caused by poor air/fuel mixture and my computer is suppose to check and re-calibrate every 15 minutes (ish). I have a 1985 Honda Shadow VT700 that I've rebuilt and re-jetted the carbs on. Saw some older posts here but was wondering if this is due to the aftermarket pipes and if putting on the stock ones (which I have. Get 20% off a new pocketknife at https://kershawcom/ with code 20TSM. Link – VTX 1800 Sync. dream stories sheets It could be at the header pipe or where the muffler joins the header pipe. The trend is as plain as the nose on your faceDOCU On Thursday evening, DocuSign (DOCU) , a darling of the pandemic economy, released the first first quarter financial results One thing that nobody can complain about is Tesla's fundamental strengthPEP The news of late has varied, some of it very positive. When you decelerate, the intake valve closes sooner, which might leave some unburnt fuel in the cylinder. Regularly inspect and service your golf cart's ignition, fuel, exhaust, and timing systems to ensure smooth operation. No ifs ands or buts, that’s what causes it. Possible solutions offered were to (1) make sure the throttle position is definitely set to zero. Free Maintenance course Join my FREE maintenance course to achieve quality. Exhaust backfire on deceleration. You too can take a bite out of your decel pop! Aug 10, 2023 · The reasons why your motorcycle is backfiring are always related to faulty fuel system components, ignition system components, air supply unit, or mistimed camshaft or valve opening. 041" wi brass washers to stop the exhaust pop & get it running OK. Klein carbs some have a diaphragm that if it gets holes bike backfires on deceleration but gas milage goes down. 84%] and the bike will not pop or backfire at all on decel. Different after market exhaust systems can cause back fire too but that'll be consistent. The beauty of using Quick Tune is you do not need to. Low compression. On deceleration from hi rpm's, I get multiple LOUD backfiring from the exhaust [not the usual popping] when I pull out the choke knob it stops. Backfiring is usually the result of a lean air-fuel mixture where there's too much air and not enough fuel. Jan 24, 2015 · 6571 posts · Joined 2009 Another cause of after-fire is the engine going lean on decel; the Suzuki carbureted bikes have special valves to enrich the mixture on high vacuum to help with this. Hi, all you ignition gurus out there I have a '99 wide glide. With so many options available, it’s important to know what to look for when shopping for a pre-o. stacked bob haircut curly hair Check out how easy it is to tune your carbs to eliminate deceleration backfire. Saw some older posts here but was wondering if this is due to the aftermarket pipes and if putting on the stock ones (which I have. Apr 18, 2015 · 90 posts · Joined 2014 I am having the same issue with my 2005 XL1200. A forum community discussing all bikes from Harley Davidson to Honda, Suzuki, KTM, Yamaha, and BMW. When I first installed the exhaust I had the same difficulty, backfiring when you let off the throttle. When the RPMs are high and I let off the throttle I hear the back firing. I have an Evo with V&H short shots, with the loud baffles, and even they don't pop on decel. Low compression that leads to an inconsistent burning rate for the fuel. When I first installed the exhaust I had the same difficulty, backfiring when you let off the throttle. 3 posts · Joined 2020 Hey guys, so I found my problem. Thats why sometimes its louder than others (2 full charges and then it goes bang. 3 posts · Joined 2005 new to forum I have a 99 RoadKing-carb model. This is my first HD motorcycle, and I have a question regarding a "bad" vibration and sometimes having backfiring when closing the throttle and using the engine to slow down. Most owners seem to like the popping (kinda like most Harley owners like the loudest straight pipes possible), but you can't please everybody So although earlier Corvette mufflers were tuned to be quiet on decel, the popping was not tuned out of NPP or the new Z06 system. Timing is set to service manual specs; changed carb out 3 times; a new fuel pump with correct amount of pressure, and a new filter. backfires on deceleration. Popping on deceleration should I do nothing? Discussion in ' Old's Cool ' started by bikecat, Sep 26, 2011. But what makes the engine pop on deceleration when the mixture is lean.
Post Opinion
Like
What Girls & Guys Said
Opinion
54Opinion
The effect is similar throughout the exhaust/intake piping and ports. Remove and make sure TPS plug wiring is clean and tight. Under hard decel you go into this decel fuel shut off. 1 post · Joined 2023 I have a wide glide that is backfiring and popping when I accelerate. Bought a 2014 Iron 883 and quickly traded out the stock pipes for some Bassani 2 into 1s and put a Cobra intake on. Strong hiring, along with a deceleration in pay growth, contributed to 296,000 jobs in April, according to the ADP National Employment Report. I pressure tested the fuel line, 60# of pressure. Thats why sometimes its louder than others (2 full charges and then it goes bang. Evo backfiring on decel. Just the one backfire, but it's loud. If you have never replaced your fuel filter before it may be a good idea to inspect and replace it if necessary. It prevents the motor from burning the mixture at a rate at which the air/fuel mixture is introduced. I searched but could not find enything. When I'm accelerating I get what I call a "burp" when changing gears. While the, "Back out your fuel. Every parent dreams of passing wisdom to the next generation. If the pop is muffled the bike is too rich. racingjunk trailers To stop it you have to play games with the EFI, one way or another. A lean or rich condition can be a result of a vacuum leak, blown exhaust gaskets, or internal carburetor problems. Lately I noticed engine backfires thru exhaust, more than normal, at low rpm's and on deceleration. This is not a bang heard out the pipe but more like a ping/pop right in the header. However, upon deceleration, or downshifting, it backfires with a popping sound. I was running a 48 and early in the year it started popping on decel, running hot, and really surging a constant low throttle speeds. There are no magical methods to "cure" ANY tuning system. I noticed yesterday that it sometimes seems to struggle at idle (when warm) and on initial throttle when. 3073 Views 10 Replies 10 Participants Last post by Lobo Solo, Oct 3, 2014 Jump to Latest C. Some people just don't like the pop. If it guits popping, it's too lean. True backfires are very rare, and that’s a good thing, since they can blow the throttle body off the engine and light. " "My 2001 [Harley-Davidson] Road King (fuel injected) will run just fine for about 3-4 mi. I know this question has probably been covered a bazillion times but I just can't seem to find an answer that covers my problem. After that the engine has started to pop and backfire with back pressure. If you want that 450 to sound like a f'n beast, go to eBay and buy "The Slasher" if one is available. Backfires occur in one of two places. menards clearance sheds Different after market exhaust systems can cause back fire too but that'll be consistent. 2006 Green Honda Foreman 500 - Viper Elite Winch. Possibly idle mixture adjustment, base timing or valve timing. Free Maintenance course Join my FREE maintenance course to achieve quality. Common causes include problems with the fuel system (like clogged fuel injectors or a dirty fuel filter), ignition system issues (such as faulty spark plugs or ignition coil), and incorrect engine timing. During deceleration with 0% throttle the A/F mixture is too lean to burn in the combustion chamber so it is expelled into the hot exhaust where it is ignited. Happy Veterans Day everybody. The factory setup is very lean to comply with emissions regs. Apr 20, 2006 · I have found that almost all of the time any backfire when you get off the gas is due to an air leak. not quite backfire, after the decel that annoys me. In normal cruising at times it is just like a major cough. When the spark plug tries to ignite the air and fuel mixture, the combustion can be. Got my belly full at numerous restaurants. This will take fuel away from the decel area, and should* eliminate or at least help with popping. Re: backfire on deceleration (79corvette) It can also be an indication of an exhaust leak, so make sure that all of your connections are tight and all the gaskets are appropriately sealed. The BoosterPlug will minimize the backfire and popping in your motorcycle exhaust when you close the throttle. Backfire on Deceleration. Use quick tune to increase your fuel and spark timing for … As stated check the exhaust mounts and center the engine in the frame. The deceleration is for sure in the pipes. only changes at all is about 1/2 turn on. Deceleration, or decrease in speed, can be calculated using multiple different formulas, depending on the available parameters. May 18, 2019 · Step 1: Identify the Cause. expandable buffet table The meaning of the word in common language differs from its mean. Could be an exhaust leak, typically at the headers collector gasket, sucking in fresh air during deceleration and mixing with unburnt fuel causing a backfire or "popping". Check your system for leaks and repair. especially at stoich and not a modified AFR like 131 setting. The dealer remap brings the bike from really lean condition as a result of the exhaust and intake changes to the normal lean condition from the factory. Have 16,000 HARD miles in last couple years (4,000 at 80-90 all day on highway during travel) n still sounds the same n performs like a beast. Could be an exhaust leak, typically at the headers collector gasket, sucking in fresh air during deceleration and mixing with unburnt fuel causing a backfire or "popping". Advertisement Two years after the. Bike runs great about 3/4 mile. The first thing to try is to cycle your engine. Backfires on deceleration 21 posts Jan 24, 2015 What causes a bike to back fire? 8 posts Jul 15, 2012 At my wits end! Backfiring and fouled plugs on. Have installed Rush slip-on mufflers with 1. Every parent dreams of passing wisdom to the next generation. The most common reason for exhaust popping on deceleration is a lean condition. Somehow when my engine is at vacuum i believe it sucks some oil from somewhere and goes into the exhaust, and that's why when. Gas stations don't explain it. just buy a rat rod flame thrower kit Looking at the Injector Off Pattern for Sound Optimized Torque Reduction table, the X Axis seems to be Engine Speed (RPM) and Y Axis is Cylinder. The decel pop is worse than it was with just the Rush mufflers alone. Possible solutions offered were to (1) make sure the throttle position is definitely set to zero.
This decreases the amount of fuel that the ECM takes out during decel, which enrichens the AFR during decel. The 1981 Harley-Davidson Heritage Edition motorcycle was a mixture of old and new. I have a 98 Dyna with stock Evo fairly new reman at HD in Sept 2010. I used to think so too, but I outgrew that phase a long time ago I have a 2001 sportster 1200c that tends to backfire on deceleration - especially when cold. Silverback. australian shepherd puppies for sale hey, i had lots of problems with my bike popping and fouling plugs at the same time, it sucked! popping is generally a sign of a lean mixture, but since i was fouling plugs mine was obviousely too rich. both on the "factory" and recommended" setting the bike still backfires. Your golf cart's carburetor has either a screw or lock nut on the bottom. Popping on deceleration is due to unburnt fuel ignited in the exhaust. The Deceleration Pop Problem is many times a nasty issue to deal with. house for sale kansas On fuel injected bikes, the backfiring is caused by what is called "fuel cut". This adjustment takes a special tool and if you are not confident working on the throttle body it may be best done by your dealer. I explained what was going on and asked if maybe the computer was bad - backfiring is typically caused by poor air/fuel mixture and my computer is suppose to check and re-calibrate every 15 minutes (ish). There is some popping on a hard decel which I think is normal. rail car length How do your plugs look? If it's backfiring the you've got a problem for sure. We all hold unrealistic expectations — though we might realize it. Harley-Davidson motorcycles use a chain-driven primary system to transmit power from the engine sprocket to the clutch housing. I have a 98 Dyna with stock Evo fairly new reman at HD in Sept 2010. The heat of the detonation of hot air and unburnt fuel will raise the temperature of the exhaust system. Jul 30, 2013 · Learn how to use Dynojet's Power Commander fuel tuner to reduce deceleration popping on your motorcycledynojet.
The dealer remap brings the bike from really lean condition as a result of the exhaust and intake changes to the normal lean condition from the factory. Since I put high quality aftermarket pipes on it (with baffles installed) the problem is more noticable, but there was sputtering even with the factory pipes. On fuel injected bikes, the backfiring is caused by what is called "fuel cut". Exhaust Popping on Deceleration. Idles poorly - Fluctuations in idle RPM, stalling. A lean or rich condition can be a result of a vacuum leak, blown exhaust gaskets, or internal carburetor problems. Bike runs great about 3/4 mile. This can lead to a backfire while accelerating. Saw some older posts here but was wondering if this is due to the aftermarket pipes and if putting on the stock ones (which I have. So, the popping you are hearing is not back-firing. 3 posts · Joined 2020 Hey guys, so I found my problem. Whether you’re looking for a new or used trike, there are plenty of benefits to owni. red christmas kitchen curtains Just the loud backfire on the one side. I pressure tested the fuel line, 60# of pressure. My truck motor developed a slight backfire in the headers upon deceleration from hwy speeds and I am curious what you may think it is. since the swap the engine starts well and runs strong but backfires on deceleration. If it is still hooked up disconnect the hose from the air box and plug it, go for a ride. Linkert adjustments. 11 posts · Joined 2015 From what I know, the issue of decel popping isn't really an issue. The reasons for the lean/rich mixture can be: Improperly adjusted air or fuel screw. It has Vance and Hines Big Shots and a Screamin Eagle air filter. since the swap the engine starts well and runs strong but backfires on deceleration. Use the built-in PV feature, Quick Tune, to increase your fuel and spark timing for deceleration. Address these concerns and repost if continuing to have this specific problem. Change the float in the carburetor if it has a bad needle. A clogged fuel injector, leading to an insufficient fuel supply. if it's marginal you can adjust out your fuel screw to eliminate (up to 2 1/2 turns). The motor is a mild 460 built for towing torque. The easiest ways to check are with soapy water around the head pipes or using incense or a cigar and see if their is any disturbance in the smoke. This can lead to a backfire while accelerating. Oct 19, 2023 · Backfire on deceleration or acceleration on a Harley Davidson is due to the burning of excess fuel in the carburetor’s intake port. clip4 sale The motor is a mild 460 built for towing torque. especially at stoich and not a modified AFR like 131 setting. 400 posts · Joined 2008 I spent some time with the guys that installed the computer on my bike. Always one kick cold, but the 5 or 6 hot was the give away something was wrong. It prevents the motor from burning the mixture at a rate at which the air/fuel mixture is introduced. since the swap the engine starts well and runs strong but backfires on deceleration. Look for a hole in your exhaust pipe or the pipe is maybe loose at the head end. Backfire on deceleration, V&H slip-ons. If they are black and fouled with fuel, then you're too rich. I set the idle screws for max vacuum. Saw some older posts here but was wondering if this is due to the aftermarket pipes and if putting on the stock ones (which I have. A lean air or fuel mixture from the carburetor of a Harley Davidson results from drastic changes in the pressure. guide to using sept tuner to adjust excessive exhaust decel pop from your bike, episode 2 tuning serieshttps://youtube. I have an 02 Duece, Screaming Eagle heads, power command, 208 cam, large bore kit, 30k miles. I had this issue when I started riding my Ultra. Good chance you have a air leak in your exhaust somewhere. There is a procedure for setting.