What does it mean when a Harley Davidson backfires?
If the Harley Davidson emits flames out the exhaust, a yellow flame means the bike runs rich, whereas blue flames mean the bike is running lean. When it comes to backfiring on deceleration, the bike typically backfires through the exhaust pipes.
Why does my car backfire when I Turn on the engine?
Backfiring is common on other vehicles, too, because they also have an exhaust or fuel system. A combustion chamber in the vehicle is supposed to contain the explosion and minimize the noise. If it fails to do so, it might be time to check the vehicle at a mechanic or dealership.
How often do Harley Davidsons start to misfire?
We see it 2 or 3 times a year and usually in batches of 3 or 4 vehicles. If water gets into the supply tank it will go to the bottom. eventually it will build up until the pump starts to suck it out. At first it will suck a fixture of fuel and water so the vehicle will run as described. Thank you Tony.
What happens when you backfill a Harley Davidson?
Although backfiring isn’t all that bad for a bike, it can cause other problems. When in a confined space, the backfiring can damage hearing. Excessive backfiring can also emit small flames from the exhaust, which can cause a fire. Many of the Harley-Davidson’s that have excessive backfiring have bad mileage because the fuel is being wasted.
If the Harley Davidson emits flames out the exhaust, a yellow flame means the bike runs rich, whereas blue flames mean the bike is running lean. When it comes to backfiring on deceleration, the bike typically backfires through the exhaust pipes.
Why does my Harley Davidson keep backfiring and sputtering?
About 3-4 minutes of riding it was fine. After work, started bike and it did a half start and died, started up (hesitantly) 2ND time. warmed it up, rode 5 mins backfiring, spitting fire etc. Pulled over, called for a ride. Bought new plugs. When we pulled the plugs the gapping was wrong.
Is it dangerous to have a motorcycle exhaust backfire?
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.
Why does my motorcycle engine keep backfiring?
When you are getting too much air and not enough fuel in your cylinder this is called running lean. A lean condition in your engine is terrible for the engine internals. Too little fuel in the cylinder and an excess amount of air can be the culprit to your backfiring problem.
About 3-4 minutes of riding it was fine. After work, started bike and it did a half start and died, started up (hesitantly) 2ND time. warmed it up, rode 5 mins backfiring, spitting fire etc. Pulled over, called for a ride. Bought new plugs. When we pulled the plugs the gapping was wrong.
Why does my Harley Davidson start and stall?
All in all it’s a strong running bike and this is usually just a minor annoyance, still if there’s a quick fix I’d love to hear it.Thanks -Bob A: Bob, the most common reason a m/c will act this way is because of an intake leak. Start the bike cold. Mist the intake flanges with brake cleaner.
Is it okay to backfire on an ATV?
What’s more, four-wheelers can survive it all. Scratches, knocks, crashes, you mention it. Heck, ATVs can even roll over and still be okay to drive. But one disadvantage of four-wheelers is that they are quite susceptible to backfiring. This is why you must understand everything there is to it. Otherwise, you won’t have an easy time owning an ATV.
All in all it’s a strong running bike and this is usually just a minor annoyance, still if there’s a quick fix I’d love to hear it.Thanks -Bob A: Bob, the most common reason a m/c will act this way is because of an intake leak. Start the bike cold. Mist the intake flanges with brake cleaner.
When did my Wife’s Harley start to misfire?
My wife’s 2005 FLHTCUSE2 began to develop problems a few weeks ago. After a short ride, we stopped for her to get gas. On the way home, her Harley started to misfire and run poorly. I lost sight of her so I pulled over. After about 15 mins she showed up and said her bike would not stay running.
Why did my Harley Davidson battery start to misfire?
It turned out the battery to be the problem. The reason its intermittent is the bike will start running weird in other words it would take a charge but if for some reason that charge did not hold for long the bike will start running weird again. So I went and change the battery and I’ve never had the problem since.
My wife’s 2005 FLHTCUSE2 began to develop problems a few weeks ago. After a short ride, we stopped for her to get gas. On the way home, her Harley started to misfire and run poorly. I lost sight of her so I pulled over. After about 15 mins she showed up and said her bike would not stay running.
It turned out the battery to be the problem. The reason its intermittent is the bike will start running weird in other words it would take a charge but if for some reason that charge did not hold for long the bike will start running weird again. So I went and change the battery and I’ve never had the problem since.
What was the problem with my Harley Davidson?
After about 15 mins she showed up and said her bike would not stay running. At each stop, it would stall but would always start after the fact. It died in the driveway. We tried to troubleshoot the problem but have been unsuccessful so far. Checked the fuel pump, getting gas, changed the plugs and checked the wires for leaks, no leaks.
Although backfiring isn’t all that bad for a bike, it can cause other problems. When in a confined space, the backfiring can damage hearing. Excessive backfiring can also emit small flames from the exhaust, which can cause a fire. Many of the Harley-Davidson’s that have excessive backfiring have bad mileage because the fuel is being wasted.
What to do if your Harley backfiring on deceleration?
Don’t “change the plugs” like some people suggest, it’s a waste of time and money. Messing with the ignition timing really won’t help either, because it is still a lean fuel/air mix on deceleration that is the cause.
We see it 2 or 3 times a year and usually in batches of 3 or 4 vehicles. If water gets into the supply tank it will go to the bottom. eventually it will build up until the pump starts to suck it out. At first it will suck a fixture of fuel and water so the vehicle will run as described. Thank you Tony.
What causes an engine to backfire after a compression stroke?
On the other hand, retarding the spark too much after the cylinder compression stroke will not only cause engine to lose power and waste fuel, but can also lead to exhaust backfire (aka afterfire). This is because flames from the combustion can jump through an open exhaust valve and cause unburned fuel to explode in the exhaust system.
What kind of resistor do I need for dirt bike engine?
Use a 2 ohm resistor rated in the neighborhood of 100 watts of power. I bought a generic one for about $5 off ebay. You can use the one that came with your engine as long as it’s not the kind you have to hold down. My dirt bike had the hold down style so I bought a $5 toggle switch from home depot.
What causes a pit bike engine to sputter?
The problem of having an engine “sputter” is typically caused by a fuel system issue. For pit bikes with smaller cc displacement engines, in order for a cylinder to fire efficiently, three separate components must work together; the fuel delivery system (carburetor), the ignition coil and wires and the spark plug.
What kind of suspension does a VTR1000 have?
The VTR’s front suspension was way to soft when I got the bike. the bike is a used silver 97, that was a domestic Jap model, that was totally de-restricted. I got turned on to Roger at the VTR1000.org BBS.
How does a VTR1000F Firestorm suspension fork work?
When you put the oil in the fork you have to pump the fork tube up and down a few times, do this slowly or you WILL get a glob of oil in the face (don’t ask how I know this). The air gap is made without the spring or spacer in the fork.
What should the air gap be on a VTR1000F?
The “Air Gap” should be set at 140mm. I made up a tool to do this, it consists of a large syringe a piece of flexible tubing, a piece of rigid tubing (I used some brass tubing I had, about 300mm long and has an inside diameter of about 4mm). I then got a chunk of aluminum about the size of a quarter and abut 10 mm thick.
What are the faults of the VTR Forks?
The biggest fault on VTR forks is on the compression side not the rebound. The rebound valving is adequate as standard but the stepped shape of the taper does not give a fine enough adjustment for long enough in my opinion. That is why I change the taper profile and length.
Why does the exhaust on my motorcycle backfire?
Shorty exhaust also has a tendency to backfire more because there’s not as much pipe length for the turbulent air to become more smooth like the motorcycle was originally designed for. Engineers put a specific length of exhaust pipes on motorcycles because that way it will get the best fuel efficiency.
What causes a Harley Davidson engine to ” fire “?
The engine is still spinning but the incoming fuel rate is very low, until just enough builds up in the combustion chamber to “fire” on the exhaust stroke of the engine. Don’t “change the plugs” like some people suggest, it’s a waste of time and money.
Why does my bike pop when I backfill?
Real backfiring is actually the bike “spitting up” in a sense, backwards through the carburetor or intake. So, the popping you are hearing is not back-firing.