Why Does My Motorcycle Backfire?-Causes and How to Fix Them

Backfire is a loud noise that comes from your exhaust pipe while your motorcycle is running. Motorcycle backfire is an annoying and dangerous problem. It can also damage your ears and the rider next to you and can start a fire if repeated in a confined space.

If you notice, the boys and girls of the growing age think it is magic that the silencer pipe of the bike makes a loud noise and flames come out.

Basically, it’s a problem, not a biker tool by any means. In most cases, it is due to various problems, and many people think that it is a joke. Yes you can do it custom if you want, but that too is harmful to the engine of the bike.

This problem can occur in the bike due to several reasons. I will discuss with you some of the most common reasons. Let’s begin.

Timing

Most motorcycle backfires occur due to lack of proper timing. An idle rpm is set for each bike. If for some reason, the idle rpm of your bike fluctuates, then this problem can occur.

Suppose your bike’s idle rpm is 1200, but if for some reason it becomes 600/700 or 2000/2200, then the bike will start backfiring. In general, the bike will start backfiring when the idle rpm of the bike is less than or above.

More fuel

In order to produce the right amount of power in the engine, the mixture of air and fuel must be in the right amount. If more fuel enters the engine than required, the engine will overheat. And when this excess fuel burns and wants to come out in the form of gas through the exhaust pipe, there will be noise. Again, the oxygen on the outside of the pipe may come in contact with it and create a spark.

Exhaust

Many people change the exhaust pipe while modifying. It’s nothing to blame. But everything that is attached to the engine of the bike is somehow related to the performance of the engine. So don’t make it too small or too big while modifying. According to statistics, this problem can occur only if the exhaust pipe is less than 12 inches.

Timing chain

The pickup will misfire when you release it from high speed. The engine camshaft seems to not want to turn when the pickup is released. The bike seems to be pushing. But rotating due to momentum or speed. Meanwhile, the timing chain takes the power from the wheels to the engine’s camshaft. If the timing chain is loose then the flywheel cannot turn. Rolls over the flywheel without spinning it. As a result, a loud sound is created. This is the first sign of timing chain damage.

Engine jam

If excess dirt accumulates in the carburetor or fuel injector of the bike, they will not be able to work normally. The mixture of air and fuel will not be correct, fuel will not burn at the right level, etc. There will be various problems. And one of the reasons for this backfiring is that the engine of the bike is not working properly.

Read more: How to wheelie on a motorcycle?

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