Motorcycle sputtering and backfires

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May 17, 2014 · 2008 victory backfires, how to check throttle boot kingpin, motorcycle backfire rough idle, motorcycle backfire while idle and throttle, motorcycle backfires and dies, motorcycle backfires at idle, motorcycle backfires severely at idle, motorcycle backfiring at idle, victory motorcycle backfires, victory start throttle, victory vision intake leak spits sputters and backfires spits and sputters backfires sometimes looses power while driving please help - Harley Davidson 2004 XL 883 Sportster question A backfire is a loud pop or bang sound that comes from your exhaust pipes when your motorcycle is running. A motorcycle exhaust backfire is an annoying and potentially dangerous problem to have. It can damage your ears if you’re in a confined space, or could start a fire as some backfires even emit flames, I’ve almost had my hand burned once from a pesky backfire problems I was troubleshooting. If you don’t do this step, you’re motorcycle is more likely to sputter and backfire with the custom exhaust system. Another cause for motorcycle backfires is a bad fuel pump. Your engine is not getting enough fuel and this lack allows for too much air to enter the combustion chamber. I'm getting a lot of sputtering and misfires under hard acceleration in the 6-7k rpm range. If I creep up on those high rpms it's fine. But if I'm accelerating hard it sputters when the rpms get high. Also, I can go wide open throttle and have no sputtering as long as I keep the RPMs below 6k. What I've tried already: Really amazing. After that and a spray down with carb cleaner and compressed air, new carb kit and an inline fuel filter installed, my 97 started like a champ. Test run afterwards showed the symptoms persist. See title: runs fine for about 10 minutes then starts cutting out, backfires, and dies. Let it sit a few minutes and it starts again ... Motorcycle Backfiring And Sputtering spits sputters and backfires spits and sputters backfires sometimes looses power while driving please help - Harley Davidson 2004 XL 883 Sportster question Sputtering, misfiring, etc. problems, EFI machines, the fix. Jump to Latest Follow 1 - 8 of 8 Posts. elkbow · Premium Member. Joined Dec 30, 2005 · 1,438 Posts ... Anyway, I got about two-three miles and all of a sudden my bike started loosing speed, sputtering and backfiring. I had to pull over and as I sat on the side of the road, I kept revving it and it just did not want to go above 1/4 throttle. I could not understand why..after a while of revving, it finally went full throttle with out any sputtering. Oct 16, 2008 · Motorcycle Mechanic: Christopher, Motorcycle Mechanic replied 11 years ago After gas is left to sit for 30 days it begins to gum up carbs and reek havoc. It will clog up jets and clog orifices. The factory Evolution engine's ignition can contribute backfiring through the carburetor. Cam design: Long duration cams with early opening intake valves can contribute to backfiring. Intake manifold air leak: A lean condition due to an intake manifold air leak can cause backfiring. Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. Arcing across the points is a good indication of a bad condenser. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. I would start... - Suzuki FA50 Moped Sputtering, misfiring, etc. problems, EFI machines, the fix. Jump to Latest Follow 1 - 8 of 8 Posts. elkbow · Premium Member. Joined Dec 30, 2005 · 1,438 Posts ... Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. Arcing across the points is a good indication of a bad condenser. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. I would start... - Suzuki FA50 Moped May 27, 2008 · Edit: Sputtering happens only during acceleration, especially coming from a stop. Exhaust pops happens during acceleration as well, but I got it twice during downshifts. ** UPDATE: ** Looks like grunge ryder was right again! Driving my bike around and clearing the B12 out seems like all it was needed. Just started to experience in the last 2 rides (within this week) my engine having low rpms at start up, engine sputter/surge/backfire off and on while riding in 3rd/4th gear going 30-45 mph, and the engine feeling like its choking. When i first start the bike, choke out (have pc3, tornado, and... Mar 09, 2020 · When it comes to backfiring on deceleration, the bike typically backfires through the exhaust pipes. In the event of a backfire when accelerating, the Harley backfires through the combustion chamber of the motorcycle. The combustion chamber and the exhaust pipes and wiring are all part of a Harley Davidson exhaust system. If you don’t do this step, you’re motorcycle is more likely to sputter and backfire with the custom exhaust system. Another cause for motorcycle backfires is a bad fuel pump. Your engine is not getting enough fuel and this lack allows for too much air to enter the combustion chamber. May 27, 2008 · Edit: Sputtering happens only during acceleration, especially coming from a stop. Exhaust pops happens during acceleration as well, but I got it twice during downshifts. ** UPDATE: ** Looks like grunge ryder was right again! Driving my bike around and clearing the B12 out seems like all it was needed. Dec 09, 2018 · Spark Plug A poor spark is another issue that can cause the mower to run irregularly. A worn or damaged plug typically results in an engine that's difficult to start, runs poorly and dies. Remove... It ran fine before,then one day while I was riding it just decelerated and started backfiring and sputtering,I was able to get it home by keeping it low RPM's. And It occurs at certain RPM's and not throttle position.It starts to rev,hits a certain RPM and stops.I can put it 1/4 throttle,1/2 throttle,full throttle and it does the dame thing. Engine backfiring and stalling after it gets warm is a symptom of a failing cam position sensor (ignition pickup). Behind the round cover on the cam case. May 14, 2007 · Took bike out a week ago for ride and was sputtering and backfiring from idle up to 5000 rpm could not get going would die. Only doing from left exhaust which is the rear cylinder head. Frist thing I put seafoam in started up sat over night no luck. Total Motorcycle Forum: 20 Years, 350k posts, 315 Million Readers ... Vulcan 500 sputtering and backfiring... 4 posts • Page 1 of 1. Message. Author. jbprince Engine backfiring and stalling after it gets warm is a symptom of a failing cam position sensor (ignition pickup). Behind the round cover on the cam case. Motorcycle Backfiring And Sputtering Mar 23, 2017 · Sputtering and backfires after like 1/4 throttle, Through the carbs, it's been going on for awhile, 2006 kawasaki 650 Sputtering and backfires after like 1/4 throttle, Through… 2005 kawasaki brute force 750,will only run decent with If you have a carbureted motorcycle that is sputtering, you’re likely culprit is the carburetor. There are three main issues that can be caused from the carburetor that will make your motorcycle sputter. The first is a vacuum leak, second is a gas leak, and third could be that the carburetor needs to be tuned. Having the right tools on hand can make these repairs easy. Anyway, I got about two-three miles and all of a sudden my bike started loosing speed, sputtering and backfiring. I had to pull over and as I sat on the side of the road, I kept revving it and it just did not want to go above 1/4 throttle. I could not understand why..after a while of revving, it finally went full throttle with out any sputtering. Aug 17, 2014 · sounds like a big pop out of the exhaust not intake and not everytime. its a 883 with a 1250 big bore kit. screamin eagle II slip ons, twin tec adjustable ignition in the nose cone, arlen ness big sucker stage 2 a/c, andrew n4 cams, screamin eagle coil, stock heads. like i said after i drive for a bit and it gets warmed up real good and i shut it down and restart it will pop out of the exhaust ... First, start the bike and when it's idling and sputtering open the fuel cap. If it stops, you know that it's a clogged vent line. Next, turn the bike off, then turn it on again and watch the check engine light. If it comes on then goes off after about 4 seconds there's no code. If you have a carbureted motorcycle that is sputtering, you’re likely culprit is the carburetor. There are three main issues that can be caused from the carburetor that will make your motorcycle sputter. The first is a vacuum leak, second is a gas leak, and third could be that the carburetor needs to be tuned. Having the right tools on hand can make these repairs easy.