Hey guys I've been trying to find a carburetor for my 2004 400 4x4 fis. I could've sworn the part number was 0470-454 but after ordering the carb I found the intake side was too small. Now I went back.and checked and on countrycat it shows the part number as 0470-504 but when I look at a website to order one I see on the pic of it the side of it has a circle on it that I'm not sure what is. The area I'm referring to is nearly center of photo just above the fuel connector. Is this the right carb for my bike? Thank you!