u need to add more air. If the engine does not run smoothly at low speeds, fouls plugs, blows black smoke or gets bad gas mileage a smaller (leaner) intermediate jet needs to be installed. The tuner uses faster smart chip and accelerometer technology to continuously read the bike’s EFI delivery every time the motorcycle accelerates in order to optimize the air/fuel mixture for the best performance. This highly advanced, stand-alone tuning system utilizes proprietary AutoTune technology specificly designed to interface with wide-band oxygen sensors to automaticly adjust a wide range throttle positions and RPM ranges to deliver unmatched performance and. First ride after install and I did not notice the surging that I have been experiencing. Thanks for visiting my channel! Motorcycling has opened up a whole new world of adventure for me and I'm currently riding a 2017 Harley Iron 883. twisted choppers 2 into 1 pipes for sportster evolution or buell engines. it had screamin eagle 2's on it, I took those off and put on a set of khromewerks AR-2 pipes with mufflers and baffles. I want to tune my carbs (yes, I know that the B34s are notorious for being lean in the first place). Next to your engine, the transmission is the most important part of your drivetrain. No problems with air/fuel. I kind of like the sound on my bike even though it is muffled a bit. Cleaning the idle circuit passages requires compressed air. It is a popping resonating sound generated by a lean condition on deceleration. indian / victory. the popping is finally gone (about 3 turns out on pilot screw). Here too is usually a jetting issue, but can also be ignition timing OR even valve timing if they've been messed with. 00 for the other extra features. Speed sold, fuel economy didn’t. Deceleration adjustments can be made at the same time and will help with any backfiring issues. These baffles are designed to produces a head-turning rich, deep and throaty tone. Power Commander (PC3) Maps. DTE - Distance To Empty Functionality • DTE - Restoring Distance To Empty 6. If you just can’t live with the exhaust “talking to you” as it burns off excess fuel at ANY rpm, then the normal settings follow: Decel Fuel Cut Rpm LOW = 1792 Rpm Decel Fuel Cut Rpm HIGH = 2304 Rpm. I had the same popping problem on my stock 08 FLSTN. com FREE DELIVERY possible on eligible purchases. pop on decel. As ericfx1984 pointed out with the photos, you have a decel air control valve which may not be working anymore. Compared to the Power Commander, the BoosterPlug offers similar or better results for must owners - at a much lower price and without the complicated setup. Nice thing is you can scare the crap out of people when you let off going by someone and it pop. I bet in the end there will still be some popping on decel. Harley Carburetor Jets Hello and I love all the info from this site as I have learned a lot from it. Exhaust popping on deceleration is due to a too lean or too rich mixture in the exhaust. On decel, air gets sucked back into the system at points ahead of the mufflers and causes popping. Does your stock Harley cough and spit through the carb, especially when you pull away from a traffic light?. we offer these in many configurations such as collector covers, coatings and wraps. Make sure it's properly tuned first. The FP-3 also boasts an Autotune feature that changes the air/fuel ratio which means your bike actually gets better over time. On a street bike, the rule of thumb is to adjust the fuel mixture screw out in ½ turn increments to add fuel. Both require a high level of driver sensitivity and talent to do their best stops, but the Panoz' light weight and excellent brake balance make it the dry-pavement deceleration champion. Nature of the beast for short pipes I'm told. tuning products. " Big City Thunder – real world performance. Worked ok but didn't really like the way the bike's rpm's would fluctuate at idle(1000-1250). ThunderMax® is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles. The tunes saved in the Power Vision custom slots will NOT be changed, only the tune in the ECM. as expected i started hearing slight popping/backfiring on decel. In any case, it’s open-loop on deceleration. On deceleration I am getting a plastic sounding rattle from the left side of the bike. Also gone was about 90% of the decel popping. Throttle response is greatly improved and there's no sign of lean-popping on deceleration. I've got the V&H Big Shots Staggered full exhaust and sound like Chinese New Year. u need to add more air. On a street bike, the rule of thumb is to adjust the fuel mixture screw out in ½ turn increments to add fuel. I could not be happier. Some have suggested installing the Vance and Hines Fuelpak fuel management system and seems to work well for others. Below are some different options for add-ons for your motorcycle. Wet weather can cause a no start problem if the distributor cap, rotor, ignition coil or coil wire, or spark plug wires are faulty. Dyno of Harley Davidson Sportster: Before & After - Duration: 2:15. Symptoms of a Defective TPS. The truth is, the synchronizer rings have absolutely nothing to do with a transmission staying in a gear or popping out of a gear. we offer these in many configurations such as collector covers, coatings and wraps. The intake manifold gaskets are some of the most important gaskets found on an engine. Yes --- and ohhhhhh yes! Pop pop pop. I just put a set of shorts shots with quiet baffles from vance and hines and a harley stage 1 filter on my 2016 sportster iron 883. Ask your unique question using the form below; Common Questions About Scooter Repair & Maintenance. The car never used to do this, only a pop or two after a cold start while decelerating in first, when the car is warming up (this has occurred since day one and is by all accounts normal). vehicle fitment home about tunes. com FREE DELIVERY possible on eligible purchases. This process is not necessary on the 08-10 Touring or 2010 Sportster models. Start by adding fuel (+5), and spark (+3) in the decel columns, and then test. The Sixties were in full swing, and dizzying changes in art, music and politics were taking place. The last of the decorations were added and we're ready to move to the useful stuff. By cruiser metrics, the Sixty feels perfectly fast enough to me and not that much slower than the big Scout when you’re giving it the ol’ whip – and it’ll blow its nearest competitor, the 883 Sportster, completely away in any performance contest as well as in any sophistication one. The SERT is also the only tuner that allows unlimited adjustablity of air/fuel mix, ignition timing, rev limit, auto decel enleanment (eliminates decel popping), injector size, engine size, acclerator pump feature (increased throttle response) and so on. I corrected this and still had some problems with popping, though not as bad. XiED-Our simple plug-n-play fuel management upgrade that fits most 2007 and later Harley-Davidson motorcycles. Had it dyno tuned last spring popped in between shifts and still had decel pop and still ran hot. American made from stainless steel and available for the following CV carburetor models:1989-2006 Big Twin and Twin Cam1988-2006 Sportster 883-1200 models1987-2018 KLR650 using Keihin CVK40Improves performance and throttle response without the need to drill the original slide. Lots of popping and backfire on decel. Once I get an upgraded air cleaner I might invest in a an hour on a dyno. The thing about shutting the fuel down is you sometimes feel as if the bike has quit running or shut off on decel at 0% throttle and possbly a little surge when it comes back on. I understand that this is a fairly common issue with newer HD's. I was looking for a good tuner for my 2015 CVOSG. Membership covers the entire Fox River Valley. due to the popping on de-cel, I took it a Hon I still have popping on decel - Honda Shadow ACE Tourer Forum. Find the Dynojet Black Power Vision - PV-2B at Dennis Kirk. Otherwise, the POP charger can be susceptible to the same problems. Features may include: 1200 Evolution® engine 1200cc at your command to deliver tons of torque for an unforgettably fun ride. The more fi recrackers, the more fuel that's being added in attempt to reduce popping. New gaskets and recalibrate fuel This is what i am scared of. 212-1750 - Louder than stock but on the quieter end 212-2500 - Medium range 212-0125 - Loud as you can get without going non-baffled. Much love and discussions is given to engines, but did you know transmissions need love as well? In this article we'll discuss signs and symptoms of transmission problems in your Harley Davidson Touring model. Oct 20, 2019- Explore vulbus's board "Chopper Components" on Pinterest. power vision. Re: Deceleration Popping explained I am glad I read this, As you can see in my signature that I have a 91 XR250R. Rated 5 out of 5 by Northerner from Streamlined look, easy install Installed on 2002 883R Sportster. If you have done this and have gotten to 14 or your bike is stalling when coming to a stop, that is all you can do and you will not be able to lessen the popping without changing the pipes or installing quieter baffles. However, I was on a long ride this weekend and the bike completely shut off and I haven't been able to start it since. My question is is this typical of this bike (I just moved up from a 1994 Sportster), or is there something I need to look at. actuall the stock cross over head pipe is prone more to decel pop then any T/D. May look at a tuner down the road. Sportster oil checks are done with the bike on the stand after a complete engine warm up to evenly distribute the 20-50 motoroil throughout. 001 is working fine for me so far , I have used it on several bikes now with no dramas. Your Harley® will run optimally meaning cooler, smoother, with more power throughout the complete RPM range. Exhaust Popping on Deceleration: When you decelerate, you reduce the amount of throttle. I uploaded the map from power commander for my set up. Deceleration or shift popping To address decel or shift popping, use the built in Power Vision feature Quick Tune. Capping of the PAIR ports removed this problem. Villageidiot destroys a perfectly nice sportster. It is much easier to detect a lean pop-off than it is a rich one, so it is wise to adjust your pop-off until you get it too lean and then back up until the lean hesitation disappears. After programming, bike has less popping and runs better with better throttle response. too much air, not enough fuel. Oct 20, 2019- Explore vulbus's board "Chopper Components" on Pinterest. twisted choppers 2 into 1 pipes for sportster evolution or buell engines. Any suggestions?. It is a popping resonating sound generated by a lean condition on deceleration. I had the same popping problem on my stock 08 FLSTN. Then suddenly, my friend informed me that his harley just acting up and it backfiring and popping. I know it wont do it as much if tuned though. A pop in the exhaust (is there really any name for this) is just that, a tiny, or sometimes rather large explosion in the exhaust pipe, more then likely from a rich condition. Lots of popping and backfire on decel. I bet in the end there will still be some popping on decel. This is an excellent kit for the Sportster, it comes with everything you need and fitment is perfect, all you need is to buy a chain and you’re set. All bikers want better looking and sounding exhausts increasing performance, throttle response without sacrificing fuel economy. The main reason, i got these was to help the decel popping i'm getting after installing my new BUB pipes. Delivered so promptly and what a fantastic little product. Question: What type of motor oil is best for scooters? Answer: I'm not sure there is one right answer to this, but the prevailing wisdom seems to be that you should refrain from using synthetic motor oil for the first 1000 miles. Power Commander (PC3) Maps. He said it worked for him and I figured $5 was worth a shot. A) In most cases you can use the default settings, however we generally recommend setting the Min MAP to 30 Kpa to prevent detuning the decel area. Seems like this is gradually finishing up! The last three days has been spent bringing everything together the final time. if there's a leak in the exhaust manifold gasket, it will also cause. The intake kit and breather setup came with all the necessary hardware needed, installation is very simple and took about 15 mins. · intermittent popping/backfire on acceleration Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust. When you suddenly close the throttle, the incoming air is choked off and the closed throttle also causes the bike to return to idle on the very lean idle circuit. power vision. However it was a bit short for the front O2 sensor to reach a good grounding point on my sportster. This causes an overrun, that is, the motor's rpm is turning faster than the fuel provided can support, so the motor begins to spool down. XiED-Our simple plug-n-play fuel management upgrade that fits most 2007 and later Harley-Davidson motorcycles. You'll need to rejet, preferably with the aid of a dyno for best all around power. This involved popping loose a couple of the trim posts that attach the panel below the rear window. I know the 205 main jet is way to big but I just kept going up a size to see if it would go away and read the plugs. This can be caused by a leaky gasket, or by the AFR being set incorrectly by the ECM. Motorcycle carburetors take in air and mix it with fuel. Tesla Semi Semi is the safest, most comfortable truck ever. Highlights include: New feature allows us to fix the dreaded 'stutter' associated with gearing changes on the ZX-14R. HARLEY SHOP TALK Often Imitated, Never Duplicated. Once we realized the big area surrounded by the pop-up handle was the button to open the bag, we were able to unlock and remove the bags without any hassle. a little info: 2002 1200C, I got it this winter. I understand that this is a fairly common issue with newer HD's. I have attempted adjusting the pilot screw, which did alleviate the popping symptoms and gave me a much smoother ride at 25 mph. ThunderMax® is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles. not sure ifs it poping back thur the carbarator or backfireing i only been rideing for about 2 months any ideas. Harley Davidson Baggers Street Glide harley davidson old school tattoo. On downshifting and deceleration, I'm getting a lot of popping through the exhaust pipes. Page 2- Popping on deceleration Headers & Exhaust. Dyno's Tuning Tips When you take your bike to a dyno for tuning by an "expert" why would you leave without it expertly tuned? When a Harley comes off the Doc's dyno, he wants you to have: Maximum torque and usable horsepower; Silky smooth power at all throttle openings. Oct 20, 2019- Explore vulbus's board "Chopper Components" on Pinterest. Reflashed with map setup for generic 2 into 1 with standard baffle map. Re: Deceleration Popping explained I am glad I read this, As you can see in my signature that I have a 91 XR250R. Find the Vance & Hines Quiet Baffle - 21301 at Dennis Kirk. It wasn't completely eliminated, but the popping that was there on every decel was greatly. It uses OEM (original equipment manufacturer) style connectors making installation easy and quick. Harley-Davidson Sportster Macking a custom retro tank pattern that matches the air filter cap, TRACKER BARZz, taped pipes, can't see all of it but I wanna ride this bitch! 7 Amazing Useful Tips: Harley Davidson Wallpaper Custom Bikes harley davidson quotes men. When you suddenly close the throttle, the incoming air is choked off and the closed throttle also causes the bike to return to idle on the very lean idle circuit. Just this last weekend I began noticing that on decel in gear (non-braking) the car would start popping/cracking in the exhaust. Wet weather can cause a no start problem if the distributor cap, rotor, ignition coil or coil wire, or spark plug wires are faulty. Nightrider's unique patented design works inline with your existing H-D Bosch narrow band O2 sensor and Delphi ECM to richen the fuel mixtu. This is an excellent kit for the Sportster, it comes with everything you need and fitment is perfect, all you need is to buy a chain and you’re set. Also gone was about 90% of the decel popping. The Dynojet Power Commander plugs inline with your bike’s stock fuel injection system. The bike just did not run the way I knew it should (alot of decel pop, sluggish throttle response,ect). The decel popping is gone. On the ZX1100 Kawasaki getting to the shims involves pushing a Rocker Arm, also known as a Cam Follower, out of the way with a small screwdriver and popping the shim out. Why does my engine spit or backfire? First off, you need to determine whether it is backfiring out the exhaust or back up through the carb. POPPING in the exhaust = lean condition. These baffles are designed to produces a head-turning rich, deep and throaty tone. 212-1750 - Louder than stock but on the quieter end 212-2500 - Medium range 212-0125 - Loud as you can get without going non-baffled. Based in Saint Charles, IL. You want to start small and reduce. All fuel injection systems turn off the fuel during deceleration when the throttle is fully closed, then turns the fuel back on down to idle once the engine reaches a predetermined r. As long as it doesn't turn into a full-on POP I agree with swifty, it's almost a pleasant purring sound. Adjustable Decel Pop Control New Rider Programming Mode Feature - Store up to 5 basemaps and access them PLUS the ability to change idle speed, speedometer calibration and clear AutoTuned adjustments ALL without linking to a computer. and in-app control over popping on deceleration let you dial in your ride to suit your style. 2019 Harley-Davidson Ultra Limited Totalmotorcycle. Seriously to decrease popping on decel, change your habits and be aware of your throttle when down shifting. This process is not necessary on the 08-10 Touring or 2010 Sportster models. First ride after install and I did not notice the surging that I have been experiencing. We take a minute to break it down for you and show you a simple way to fix it with a Dynojet Power Vision. I've got the V&H Big Shots Staggered full exhaust and sound like Chinese New Year. They will not color the same way as with a carbureted engine does. Two different Harley dealerships have said that it is mapped for a Stage 1 and that the popping on decel is normal, but I just don't see it. 1) Choke not closing properly. This highly advanced, stand-alone tuning system utilizes proprietary AutoTune technology specificly designed to interface with wide-band oxygen sensors to automaticly adjust a wide range throttle positions and RPM ranges to deliver unmatched performance and. The R-T DFO which I bought from a local Harley shop was manufactured by Dobeck. The end result of this level of precision is the elimination of deceleration popping and detonation (pinging), improved acceleration, ideal Air Fuel Ratio (AFR) and ignition timing. 06 ltr 450 popping on idle and decel. Harley Davidson Screamin’ Eagle Pro EFI Super Tuner. When your engine has the proper air/fuel ratio metered to it, it can perform to its potential,. 7:1 except in warm-up, sudden transitions, and wide open throttle, as well as hard deceleration and or fuel cut-off. mostly with big evo’s. Makes sure exhaust is tight at the head and where pipes meet. if there's a leak in the exhaust manifold gasket, it will also cause. com Key Features. Hopefully that will get rid of a deceleration pop that has developed lately as well. Here too is usually a jetting issue, but can also be ignition timing OR even valve timing if they've been messed with. I know it wont do it as much if tuned though. Blocking the PAIR system prevents unwanted air from entering the exhaust stream, which can decrease exhaust "popping" and is required for a proper vehicle tune. I kind of like the sound on my bike even though it is muffled a bit. If you just can’t live with the exhaust “talking to you” as it burns off excess fuel at ANY rpm, then the normal settings follow: Decel Fuel Cut Rpm LOW = 1792 Rpm Decel Fuel Cut Rpm HIGH = 2304 Rpm. " Big City Thunder - real world performance. Find the Dynojet Black Power Vision - PV-2B at Dennis Kirk. You will find 3 different options. If deceleration popping is NOT a particular problem except at high rpms then the following settings should be used. After a bit of reading up on it, it seems like its a good and easy upgrade for any sportster, even stock. All backed up by world-class customer service features that allow Vance & Hines to remotely assist with your riding experience. Harley Davidson Baggers Street Glide harley davidson old school tattoo. Streetglide Forum, Streetglide, HD,Street Glide,Harley Davidson, Motorcycles,Harley-Davidson,forum,bbs,discussion,bulletin board. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon. As long as it doesn't turn into a full-on POP I agree with swifty, it's almost a pleasant purring sound. That is what I like about these. I'm trying to not decel as much and just using my clutch/brake, but looks like I have to fork out another $400 to install a FP3, which I was not planning on doing. 05 road king,v & h slash cut 2 into 2, big sucker. Explore Our Forums. Capping of the PAIR ports removed this problem. Cobra Fi2000R Fuel Tuner For Harley Sportster. Deceleration Pop • Deceleration Pop - Tuning Methods and Other Info • Decel Fuel Cut Feature Use 4. This process is not necessary on the 08-10 Touring or 2010 Sportster models. Under this circumstance, the low speed fuel circuit needs to be adjusted. CHROME PLATING ADDS 1-2 WEEKS TO THE SHIPPING TIME. Stage 1's to stage 4 kits However my tuning mates in the states reckon for them it's all over red Rover. The HD ECM does not shut off fuel on decel so there is some uncombusted fuel that hits the hot baffles in the muffler and burns off causing the popping. The PO, who was the second owner, said the first owner put a set of pipes on it, but thought it was otherwise completely stock. New gaskets and recalibrate fuel This is what i am scared of. Tuners Kits. Major consideration with the remap, as you know, is that if you change configuration again later, you gotta do it again. The Sportster needs the oil changed and the K&N filter serviced. It was ridden approximedly 10th to 12th times mostly around the block on normal speed. These are a "dual O2 sensor" versions made specifically for Harley Davidson models. Once found you can find a good spot for the Vance and Hines FuelPak installation. The underslung mirrors are not for me. Worked ok but didn't really like the way the bike's rpm's would fluctuate at idle(1000-1250). The car never used to do this, only a pop or two after a cold start while decelerating in first, when the car is warming up (this has occurred since day one and is by all accounts normal). Why does my engine spit or backfire? First off, you need to determine whether it is backfiring out the exhaust or back up through the carb. these one of a kind, distinctive pipes can only be found right here at twisted choppers. Not a real problem just had to use my imagination a bit. 50" collector for scavenging to the baffle diameter of choice. I know my 06 EFI does not do that, but that is a different animal. Just going over a way to fine tune the decel pop out of your bike using the fuelpak3 without guessing with the firecrackers. dyno tuned twice. I think you may have 2 different things going on that may or may not be related. Piston slap is a ticking sound coming from the lower parts of the engine (the pistons moving in the cylinders). Sweet! The shims come in different diameters too. On a street bike, the rule of thumb is to adjust the fuel mixture screw out in ½ turn increments to add fuel. Membership covers the entire Fox River Valley. I have a question about my carb. There’s a wide-open world to experience out there. They came to Germany after some days. 05 road king,v & h slash cut 2 into 2, big sucker. SOME MOTORCYCLES ARE EQUIPPED WITH AIR CUTOFF VALVES SUCH AS HONDA,YAMAHA,KAWASAKI,SUZUKI ETC. Pop Off Pressure - The pop off pressure is not an adjustment that exists on the carb, but rather a specification that is a combined function of the needle valve size, and the spring rate of the float arm spring. Shop our complete selection of Harley-Davidson Motorcycle parts and accessories including the Vance & Hines Quiet Baffle - 21301. if there's a leak in the exhaust manifold gasket, it will also cause. Anyone else? I am trying not to make any mods until after the first service. Even if the brake pads are not worn and the noise isn't being caused by damage, that nails-on-the-chalkboard squeal at every stoplight can fry a person's nerves. Ratios as lean as 17. An open exhaust allows additional air to be "sucked up the pipe" during closed throttle and any unburned fuels, then ignite and "snap/crackle. At low speed, in first and second gear, going slow I get a hesitation and popping back through the carb and it seems as it's gotten colder it happens at around 55mph also. Motorcycle exhausts create some of the most adrenaline-rushing sounds if you're a motorcycle enthusiast. I bought a Screamin' Eagle Pro Street Tuner Part Number 41000008C yesterday and used it to download Harley's stage one map for the bike. This feature is not available right now. 5th Gear (Or Any Other Gear) Pop-Out. If you have wide open pipes, or close to wide open pipes, you might very well be properly tuned even with decel popping. and in-app control over popping on deceleration let you dial in your ride to suit your style. Check out current Harley motorcycles, locate a dealer, & browse motorcycle parts and apparel. A backfire in the intake manifold is caused by a ratio that is too lean (not enough fuel). The 113bhp liquid-cooled 937cc V-twin is a retuned Hypermotard 939/Multistrada 950 unit. The popping is not harmful, just annoying. Still looked clean inside! I kept the delkevic mid pipe I had on there and just slipped this one on. Please try again later. The deceleration popping didn't bother me at first, but am to a point now where I want to do something about it. Some have suggested installing the Vance and Hines Fuelpak fuel management system and seems to work well for others. Reflex™ Defensive Rider Systems (RDRS): Standard equipment on all 2020 CVO models, RDRS is a new collection of technology designed to match motorcycle performance to available traction during acceleration, deceleration and braking, utilizing the latest chassis control, electronic brake control and powertrain technology. An open exhaust allows additional air to be "sucked up the pipe" during closed throttle and any unburned fuels, then ignite and "snap/crackle. 5th Gear (Or Any Other Gear) Pop-Out. Hi Guys Ever since the boys installed the SERT on my 09 Sportster, I have decel popping, I went back to see my tech and he said that if I wanted it removed he could remove it, but he did say that there is no danger to the engine with the decel popping. My Thors muffler want on all the way the slits were open fresh air gets in hot exhaust boom. com Key Features. The thing about shutting the fuel down is you sometimes feel as if the bike has quit running or shut off on decel at 0% throttle and possbly a little surge when it comes back on. Since I have taken the baffles out of my cobra pipes the pop on decel also. The SERT is also the only tuner that allows unlimited adjustablity of air/fuel mix, ignition timing, rev limit, auto decel enleanment (eliminates decel popping), injector size, engine size, acclerator pump feature (increased throttle response) and so on. It just sounds SO GOOD as it is. 7 out of 5 by 3. Since it's only happening on the rear cylinder I'd check the manifold intake gasket for that cylinder and also make sure there's no air leak around the injector itself. Most commonly, the mixture will be too lean. sportster evolution backdraft hookah header. Either carbed or FI bike suffer from popping like this after installing a aftermarket slip-on canister. Hey those who know about Haley Davidsion motorcycle especially V-Twin 883 (bored to. Agreed you should check the muffler to header joint as well as the exhaust flange nut but even if tight, you will still get the decel pop. Your Harley® will run optimally meaning cooler, smoother, with more power throughout the complete RPM range. Cheers Bakes, i did select the Sportster VE for the data run, just not when I restored the histogram to post here. However it was a bit short for the front O2 sensor to reach a good grounding point on my sportster. Save 10% ($73. Had a FP3 installed a week ago uploaded the map suggested and the bike runs better than it ever has. Most exhaust popping on a Harley is actually deceleration backfire. Good power now through the entire range AND better, smoother top end. On a street bike, the rule of thumb is to adjust the fuel mixture screw out in ½ turn increments to add fuel. This highly advanced, stand-alone tuning system utilizes proprietary AutoTune technology specificly designed to interface with wide-band oxygen sensors to automaticly adjust a wide range throttle positions and RPM ranges to deliver unmatched performance and. I was once told it was normal for some decel popping by a dealer. This along with a re-sized main restored performance - eliminated decel popping and gave me back a steady, performing bike again. what causes the engine to back fire during deceleration especially in a v twin is air. these one of a kind, short, distinctive pipes can only be found right here at twisted choppers. Backfiring on deceleration is much more common and often occurs when exhaust and fuel mixture changes are made. The R-T DFO which I bought from a local Harley shop was manufactured by Dobeck. if there's a leak in the exhaust manifold gasket, it will also cause. The 1976 Formula 1 season was one of the most hotly contested campaigns in that sport’s history. I've tuned all of it out now and have absolutely no problem with popping under any conditions. Upgrading Harley-Davidson EFI engines. Save 10% ($73. too much air, not enough fuel. When coming off higher speed abruptly, it sounds like a terrible clicking noise in the trans. The popping is caused by unspent gas building up in the cylinder or within the exhaust header on decel and then finally the heat or spark will set it off. Some have suggested installing the Vance and Hines Fuelpak fuel management system and seems to work well for others. Made famous by the 2013 film Rush, everyone into motorsports knew of the rivalry between Englishman James Hunt and Austrian Niki Lauda. If its popping like a gunshot, then is more likely to be rich, and having the extra fuel is exloding in the hot exhaust. Decel pop can mean that the bike is perfectly tuned. These baffles are designed to produces a head-turning rich, deep and throaty tone. Makes sure exhaust is tight at the head and where pipes meet. The car never used to do this, only a pop or two after a cold start while decelerating in first, when the car is warming up (this has occurred since day one and is by all accounts normal). Anytime you rejet or change exhaust or air cleaner intake it is suggested to adjust the mixture. Mixture tuning on your Harley Davidson CV carburetor is a simple procedure that can easily be performed with basic tools. Mrtn87 · Softail, Sportster, and more. Not a real problem just had to use my imagination a bit. Notice: Undefined index: HTTP_REFERER in /home/yq2sw6g6/loja. If sneezing or popping is experienced below approximately 3000 rpm's the intermediate jet must be replaced with a larger sized (richer) jet. MyTune is an easy to use Windows program that takes data logged from your bike and generates a tune tailored specifically for your bike. The last of the decorations were added and we're ready to move to the useful stuff. Simply choose one of our many exhaust bends and pipe length to build a truly custom premium exhaust kit, made right here in the USA. POPPING on deceleration is usually caused by. I wanted something that wouldn't break the bank was comfortable enough to ride all day without destroying my spine, fast enough to ride freeways and get out of danger but not so I'm popping. popping on decel indicates too much fuel, not enough air; that means the mix is too rich. not sure ifs it poping back thur the carbarator or backfireing i only been rideing for about 2 months any ideas. Kind if an extra clatter that correlates with the cycle if the pistons. Harley CV Carburetor Mixture Tuning Notice: All instructions and the EZ-Just are intended for a Harley CV carburetor only. actuall the stock cross over head pipe is prone more to decel pop then any T/D. Power Commander (PC3) Maps. com Key Features. I have a 1999 wide glide twin cam 88.