Why scooters don't have diesel engines??

 Diesel is cheaper compared to petrol.

Diesel engines emit less carbon and have high torque which are great qualities for any engine.

But still diesel engines are not used in motorcycles. Instead petrol, gasoline or electric engines are used. 

Why  ????

1.  Diesel engines are heavier than other engines.  This extra weight makes the motorcycle heavier and slower.

2.  Diesel engines are costly compared to other engines because diesel engines need more materials and advanced technology to make them. They also require more maintenance and more repair.

3.  Diesel engines are noiser than other engines because they produce more vibration and combustion noise. They create less energy compared to other m engines.

To prevent all these issues, manufacturers prefer to use pety, gasoline or electric engines.