Suzuki GS450L Carb

Hello! I am new to motorcycles and I'm working on my first bike ever, a Suzuki GS450L. I have a few questions about the bike. My main question is what model carburetor comes on the bike. I have searched on google but there seems to be no sources of information on what the actual model is. All I know is that there are two Mikuni carbs (each cylinder has its own carb). Besides that I was wondering if anyone knows of any good websites where I could get information, and parts for my bike.