Have you ever wondered why your motorcycle smoking pipe, known as the exhaust, emits so much gas from the engine? Well, this science has some interesting facts!

Basically, The valves in a motorcycle engine are tiny, so the exhaust gas is hot and contains a lot of vaporized fuel.

The air-fuel mixture inside the cylinders is ignited by spark plugs in direct contact with the air/fuel mixture. 

This causes an uncontrolled burning reaction that produces heat, smoke, CO (carbon monoxide), and other toxic gases.

The bike's engine produces tremendous power, requiring high octane fuel. 

This significantly increases the production of smog-forming emissions.

The open-seated design and small frontal area on a motorcycle allow hot air to escape quickly from under the bike, creating an intense "heat pipe."

The heat pipe effect causes even more exhaust gas to be heated up and discharged into the atmosphere in what is known as "thundering."

Finally, the design of modern motorcycle helmets does not provide adequate protection from exhaust fumes and can exacerbate the problem by trapping hot air inside the helmet.