Navneet Sharma

How Does a Motorcycle (Bike) Engine Works?

When you compress a small amount of fuel under enormous pressures and ignite it, a large amount of energy will be liberated. The reason we can all drive our cars and bikes around is because of a small bang that is released in a confined space. This limited space is known as the combustion chamber.

What are the types of Internal Combustion Engines?

Engines can be classified based on what fuel goes into them and how they are powered. Two main types of fuel go into an engine: petrol and the other is diesel.

We have two different types of engines based on the fuel used because of the specific nature of the fuel itself. Petrol fuels can be ignited using lower compression with the help of a spark plug, and that is why these engines are called spark-ignition or SI engines. Petrol engines generally tend to be more expensive than diesel engines.

If you want to find out how much your dream petrol engine bike will cost with a bike loan, you can use a bike EMI calculator.

Click here:-

Diesel fuel, however, is not as volatile as petrol, this means that there needs to be higher compression of the fuel for a combustion reaction to happen. Thus, diesel engines can compress the fuel-air mixture injected into the combustion chamber by almost a 22:1 ratio. Because of the high compression, the fuel inside the chamber self ignites, giving these engines the name compression-ignition or CI engines.

What are the workings of a bike engine?

Bike engines are usually a specific variant of a spark-ignition engine. In general, they work the same way that car engines do. Each bike engine consists of cylinders, pistons, a cylinder block, and a cylinder head, which generally comes with a valve train and a spark plug.

The pistons move up and down in the cylinder, compressing the fuel-air mixture while the spark plug ignites this compressed mixture releasing the incredible energy of the petrol fuel. As the pistons move up and down, they rotate a large shaft known as the crankshaft. This rotation helps to convert the reciprocating motion of the pistons to a rotatory action.

The energy from the crankshaft is then transmitted to the wheels using the bike transmission. The transmission - or gears - fulfils an essential function. They are necessary because they allow you to control the speed of the bike.

What is the role of the transmission in a motorbike?

A motorbike engine can create loads of power, and this power needs to be delivered to the wheels in a controlled manner. This is done with the help of the transmission system, including the gear arrangement, the clutch, and the final drive.

Gears enable the rider to accelerate the bike from a complete stop to cruising speed. Transmissions on bikes usually come with 4 to 6 gears.

The job of the clutch in the bike transmission is to stop the power from the engine crankshaft to the transfer while shifting gears. Without the clutch's help, the only way to shift the gears would be to stop the engine itself. A solution like this is not feasible when we are talking about bikes. Therefore we need a mechanism such as the clutch.

The last part of the bike transmission is the final drive. The engine power is transmitted to the rear wheels via a chain drive, a belt or a shaft. Because of their easy maintenance and durability, chain drive final drives are by far the most common.

Nowadays, Bajaj offers the best interest rates on bike loans, Apply for

Two Wheeler Loan and get the loan at lowest interest rates.


Understanding the workings of your brand new bike is essential. A basic understanding of your dream bike's mechanics can give you a fresh appreciation for the mechanics of the machine, and you will find yourself valuing your automobile even more. Moreover, you will be all the more tempted to bring your favourite bike home soon!

  • Love
  • Save
    Add a blog to Bloglovin’
    Enter the full blog address (e.g.
    We're working on your request. This will take just a minute...