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Usually bike is run by petrol. The price of petrol is higher than diesel in many countries. Sometimes we think, why bike is not run by diesel. If there is a diesel bike than we can save some money. Today We are going to tell you some reasons why diesel engines are not used in bikes.

Reason 1 :  Diesel engine has a compression ratio 24:1, which is higher than petrol engine compression ratio of 11:1. Diesel engine must be bigger and of heavy metal in order to handle this high compression ratio. That’s why the diesel engine is heavier than petrol engine and not suitable for small vehicle like motorcycle.

Reason 2 : Due to high compression ratio, diesel engine produces more vibration and noise as compared to the petrol engine. It is not possible for a light vehicle to handle this high vibration and noise.That’s why diesel engines are not used in motorcycle.

Reason 3 : Due to high compression ratio and heavy engine, initial price of the diesel engine is more than the petrol engine. And this initial price difference is about 50,000 rupees, which is not suitable for small vehicle.

Reason 4 : Diesel engine produces approximately 13% more carbon-di-oxide per gallon as compared to the petrol engine. So it makes greater pollution than petrol engine and it is not good to use for environment.

Reason 5 : Diesel engine works on high pressure, so wear and tear is high in diesel engines. To reduce this wear and tear oil change are frequently required at every 5,000 kilometer instead of 10,000 kilometer in the case of petrol engine.

Reason 6 : Diesel engine produces more torque but low rpm than petrol engine. So in bikes where we need high speed, it is not suitable.

Reason 7 : Diesel has high energy per gallon as  compare with the petrol. When diesel burns, it produces a large amount of heat which can destroy walls of the cylinder and other parts of the engine. So to reduce this heat, we need a greater surface area and proper cooling system. In order to achieve this greater surface area, the engines are made slightly bigger.

Reason 8 : Diesel engine uses turbocharger or supercharger to pump more air into the cylinder, which increases its price and size. 

Reason 9 : In diesel engines, injector technology is used to inject fuel into the combustion chamber, which is more expensive than spark plug technology of petrol engine.

Reason 10 : Diesel engine is very big as compared with the petrol engine and it uses high power starting motor to crank the engine, which is not suitable for motorcycles.

After This All reason,Royal Enfield have succeed to manufacture diesel engine bikes.

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