The new LX is a 4 stroke. The vintage one I drive is a 2 stroke. I use Motul, so it doesn’t smoke much at all. Still, unfortunately, embarrassed to say, it’s a gross polluter.
The LX was a great scooter, too. Got better gas mileage, too. I guess I like the look of the vintage. If I were to get a new one, I’d be inclined to get a 250. They really improved the shocks and brakes, bigger wheels, all around better scooter. I think handles better, but bigger. A little much for little me.