Full Suspension Mountain Bike Men
My vulcan 1500 1997 back fire some time wy
Experienced athletes share their insights in answering this question:
Lean gas mixture. or the valve timing is off, but probably both. A lean mix will run really hot and allow for secondary combustion in the pipes (backfire) when the valves let even a bit of uncombusted gas through. My guess is that the bike hasn’t had the carbs cleaned out thoroughly in a while. Run a half can of Sea Foam with your full tank of gas to help clean out the carbs, but really you should take them apart and dip them to clean everything out. Also you could adjust your pilot screw settings to make it run a bit more rich, but then you are just compensating for the dirty carbs. That’s just my guess.
How to Identify and Resolve Common Issues ?
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The most common cause of a motorcycle backfire is unburned fuel igniting in the exhaust system. This usually happens because the spark plugs are not firing correctly. If your motorcycle`s spark plugs are old or degraded, they may not be able to create a strong enough spark to ignite all of the fuel in the cylinders.
The fuel will come into contact with atmospheric air and be surrounded by the exhaust. This results in combustion and creates a loud pop or bang sound. This happens as a result of a dirty carburetor. The best way to deal with this is to clean your carburetor to prevent further popping sounds.
Backfire occurs when the air/fuel mixture ignites outside the combustion chamber, typically in the intake or exhaust system, causing a loud popping or banging noise. Several factors, including a rich fuel mixture, ignition timing issues, or a malfunctioning carburetor or fuel injection system, can cause this.
Decel popping is caused by the detonation of unburned fuel in the exhaust pipe. This happens with high flow exhausts that allow more fresh air to be pulled into the pipe, causing the exhaust temperature to rise and detonate any unburnt fuel.
There`s a variety of factors that can cause your car to backfire, but the most common ones are having a poor air to fuel ratio, a misfiring spark plug, or good old-fashioned bad timing.
Lean Air/Fuel Mixture
Not only can a rich air/fuel ratio cause a backfire, a mixture that doesn`t have enough gasoline can cause a backfire, too. A “lean” mixture is one that doesn`t have enough fuel, and too much air.
Block off the fresh air injection systems. This will reduce the air being fed into the exhaust, causing the higher exhaust temperatures and detonation. 2. Adjustment to the fuel table in the zero percent fuel column from 2,000 rpm to redline, may also be needed to help reduce popping.
Modern engines can still backfire, and a poor fuel ratio is one common cause of this. For starters, let`s imagine there is too much fuel in the engine and not enough air. The spark inside the chamber may not burn up all the fuel, allowing a little extra gasoline vapor to enter the exhaust, and lead to a backfire.
Assuming all of your plugs and wires are in the correct locations and you haven`t messed with the timing at all, then the most common cause of backfiring through the carb (spitting or coughing) is in the morning when a carb`s air/fuel mixture is a bit too lean. This usually goes away once the engine warms-up.
If the spark fires in the wrong cylinder at the wrong time, this is sure to lead to a backfire, among other problems! This problem can also occur if the spark plug wires are crossed, say, after having your spark plugs replaced — but, again, modern cars have engineered this problem away for the most part.
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.
There are a few common causes that cause engines to backfire: damaged valves, bad ignition timing, or an air/fuel mixture that`s not quite right. backfires happen when your vehicle`s air/fuel mixture combusts outside its designated spot in the engine`s cylinders.
Backfiring in internal combustion engines occurs outside of the combustion chamber, and is typically the result of an improper air to fuel ratio. An overly lean air-fuel mixture (i.e. an overabundance of air) can lead to a failure to ignite in the combustion chamber, also called a “misfire”.
Backfires
Touching back on air to fuel ratios, a vacuum leak will likely make your engine run “lean” (too much air.) This means the engine cannot efficiently ignite fuel in the combustion chamber. When fuel builds up in the cylinders and combustion occurs, it will expel a backfire.
The primary cause of a backfire is decelerating too quickly. The simple fix for this is just to lower the engine speed a bit more gradually. If you have a throttle that you use to reduce speed, gradually let it up instead of letting it rebound quickly.
Typically, there`s a 12:1 or 15:1 ratio of air to fuel, and when there`s too much air or not enough fuel, it causes sneezing or popping sounds in the intake.
Likely the most common of all the annoying bike noises, scraping and popping usually occurs when there is an issue with your derailleur or shifting.
It could be something as simple as a loose exhaust pipe or muffler, or it could be something more serious like engine knock. If you`re hearing the popping sound only when accelerating, it`s likely due to an issue with your fuel mixture or ignition timing.
The popping is a result of the air/fuel mixture becoming very lean when the throttle is closed and the engine is rotating well above idle speed. It is also necessary that the exhaust system have rather open mufflers.
One of the most common signs of an exhaust leak involves popping sounds coming from beneath your hood. More specifically, this sound tends to occur as the result of a leaky exhaust manifold.
A backfire is usually accompanied by a bang or a loud noise from the engine or exhaust. If the noise is really loud then this could potentially mean damage to the cars intake or exhaust system. If the car exhaust is smoking after backfiring then the car might need to be checked.
If the problem is the fuel filter, and it isn`t changed soon, you may find that your vehicle won`t start at all. Misfire or rough idle. A dirty fuel filter could prevent the engine from getting enough fuel.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
I have a multifunction sports watch that i bought from Big W, (no brand name)
By accident i set the watch to 24 hour time, originally it was set to 12 hour time, how do i set it back? ive tried every button combo including the button combo i used when i accidently set it on 24 hour time, the instructions only say how to set the time and date, it doesnt say how to toggle between 12 hour and 24 hour time, is there a generic way to toggle it on sparts watches? btw, holding the mode button in does nothing on my watch, no matter how long i hold it in for
ANSWER : Hi. How may buttons do you have, 3 or 4 buttons?if you have the 4 buttons, try this:You need to go through the time and date settings again. The 24 and 12hr format select is at the end of time/date adjustment.To set the time and date:-press the top-left button then right-top button to set the seconds, press bottom-left button to set hour then press top-right button to adjust hour, press bottom-left button to set the minute then press top-right button to adjust minute. To set date, press the bottom-left button then press top-right button to adjust month, press bottom-left button then top-right button to adjust day and finally press bottom-left button to set the time format then press top-right button to select 12hour format. Press top-left button when done.Since you have a generic sports watch, it is hard to write specific instructions to set the time format. If your watch has different ways of setting the time, just remember that the 12/24hour format is usually at the end of time and date adjustment.Let me know if you have questions. Good luck.
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I have a kiekhafer 800 mercury outboard engine serial # 1758330 it started 4 times then the last time it just turned over like it’s not getting fire or it jumped time, I took it apart and checked wires and had several loose wire and the distributor cap around one of the screws is broke would this cause it not to fire?
ANSWER : The starter solenoid is not engaging to flywheel.Its faulty starter and it has to be replaced.The starter solenoid is worn out, so its not engaging to flywheel.The solenoid is part of the starter assembly.So instead of only solenoid replaced getting starter replaced is advisable.———-
This will help.Thanks.Helpmech.
This will help.Thanks.Helpmech.
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Suddenly stops recodring
ANSWER : I love my Sanyo mp3 recorder I’ve been using it in church for 4 or 5 years. It never quits it can hold an extra gig with a chip and i can plug it into my computer to upload it in seconds. I say replace the old recorder
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My tippman custom pro is shooting all over the place. When i fire it will shoot 5 feet to the left then to the right then two at the same time
ANSWER : May need to check that your barrel is NOT loose, check it out and if loose get it tight;)
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Ladyfish fishing pole by shakespeare
ANSWER : Try switching sides of the handle by holding the bell and reeling then screw it in on the other side of the real by just reeling in.
If that doesn’t work then take all the line out and reel in some new line the opposite way.
If that doesn’t work then take all the line out and reel in some new line the opposite way.
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What is the average speed of a rocket from the time of launch at 0.0 seconds to the time the boosters fire at 12.95 seconds? The rocket travels 25,000 feet in this time. The acceleration of gravity is 9.8 m/s/s.
ANSWER : 2016-6-4 leilei
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Don’t know if it’s a primer failure or absence of powder. Primer CCI small pistol; Powder Bullseyie; Bullet 148 grain wadcutter; powder 3 grains, Gun S & W 14,This has happpened three times in the last month. The gun did not fire. I couiold not turn the cylinder. The bullet stopped the cylinder from turning.It was pushed back with a god and casing and bullet were separated. The primer was spent and there was no powder inside. The bullet seemed a little burnt.
Maybe there had been powder inside after all?
The popular theory is that I pulled the cssing after adding the powder, weighed the powder and then forgot to reload the powdeer before seating the bullet. But three times? Is there another possible explanation or explanations? I use a three-turret Lee reloader and there is an occasional primer seating problem; it doesn’t go in far enough always
Maybe there had been powder inside after all?
The popular theory is that I pulled the cssing after adding the powder, weighed the powder and then forgot to reload the powdeer before seating the bullet. But three times? Is there another possible explanation or explanations? I use a three-turret Lee reloader and there is an occasional primer seating problem; it doesn’t go in far enough always
ANSWER : I have seen this many many times before when I used to reload, my Remington M788 22-250. If inadvertently, didn’t add any powder, the primer had enough force to just break the seal, with the brass, and push the bullet out, just into the throat of the chamber… had to use my cleaning rod, to push the bullet back out. Sometimes, too the powder itself, just went stoopid, and it would burn? and not explode, if that’s at all possible, and every now and then, and this is over thousands of reloads, sometimes one or two, just didn’t work, would either jam in the barrel, or fallout the end ..lol I too used to use a Lee-loader too. You need to ensure that every case has powder. Also I have had “Bad” primers too. A primer has a large amount of force.. believe it or not.. and also 3 grains of powder is NOT a lot either. Well compared to the M788,anyway… It would be easy to “Miss” a Fill. We are all only human though.
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