What would make a Harley backfire?
Here are some of the common causes of motorcycle backfire that you need to know:
- Wrong Exhaust Upgrades. Sometimes you can be tempted to purchase an aftermarket exhaust to fix on your motorcycle.
- Faulty Carburetor.
- Clogged Jets.
- Poor Timing.
- Excess Fuel.
- Low-Fuel Grade.
- Shorter Exhaust Pipes.
- Final Thoughts.
What does it mean when a Sportster backfires?
Ok, due to different terminology used by different people, I’m going to assume that by “backfire”, you mean it pops through the exhaust system when you back off the throttle.
What causes a motorcycle exhaust pipe to backfire?
Running rich not only drastically decreases your miles per gallon, but can cause severe backfires in the exhaust pipe.
Why does backfiring on a Harley Davidson cause a fire?
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. The fuel is supposed to be ignited inside the bike’s combustion chamber.
What causes a carburetor to back fire on a motorcycle?
The burning of excess fuel in the exhaust ports or exhaust piping from a drastic change in pressure, causing a very LEAN air/fuel mixture from the carburetor. Don’t be mistaken… After-burn is similar to back-fire, which is the burning of fuel in the intake port of the carburetor.
Ok, due to different terminology used by different people, I’m going to assume that by “backfire”, you mean it pops through the exhaust system when you back off the throttle.
Running rich not only drastically decreases your miles per gallon, but can cause severe backfires in the exhaust pipe.
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. The fuel is supposed to be ignited inside the bike’s combustion chamber.
Why is my fuel pipe popping on my Harley?
Because most aftermarket pipes produce “lower back pressure”, to add to the popping; aftermarket pipes also tend to lower back pressure this will cause the fuel/air mix to lean out. So don’t worry about that popping you sometimes hear and enjoy this year’s riding season.