premix or no?
i'm not sure if this question asks if it is a 2T or a 4T engine, or if it asks about pre-mix vs. oil injection.
on a 2T engine, the carb and exhaust typically sit lower and come out of the cylinder. on a 4T engine, they typically sit higher and come out of the head, which will be more complex-looking because it has valves and maybe a cam.
your bike has a 2T engine.
judging by the picture and the bike's age, it is probably pre-mix. if it has an oil injection system, it will have a small oil tank, maybe under the seat, with two lines coming off of it. one line would go to a pump somewhere on the engine (flywheel area), and the other would go to the intake/carb area.