2 stroke scooters
The 2 stroke engine requires both gas and oil to burn, the emissions of a 2 stroke lawnmower are worse than even large trucks, a 2 stroke scooter is even worse than a lawnmower as the engine is bigger. It's great that a 2 stroke scooter is not so bad on fuel consumption and is smaller in need of materials to build. But 4 strokes and electrics are readily available. I think that we'd all breathe easier if 2 stroke scooters weren't allowed to belch out noise and pollution in Vancouver.