Let's see what famous studies and researchers claim about the harmful emissions of cars and motorcycles.
Motorcycle engines run cooler, reducing the heat they produce and helping reduce emission levels.
All motorcycles use spark plugs explicitly designed for engine-related combustion.
On the other hand, regular car gasoline uses a single plug design that is not optimized for combustion.
Motorcycle throttle bodies are calibrated and tuned to provide efficient power delivery and reduce emissions.
Motorcycles use higher quality oil than cars, which also helps reduce emissions.
Cars are notorious for emitting hydrocarbons, which are highly harmful and corrosive gases.
In many countries, including the US, you must smog test your vehicles and have a certificate, except for motorcycles in some states.
Fortunately, motorcycles do not produce any significant levels of hydrocarbons.