Damn, sorry about that. They must of have recently changed it. I downloaded the People 50 and ZX50 last month. I have them saved on my computer. I will see if I can post the diagram for the fuel system. Okay, I just checked the service manual and there really is not a clear diagram on where the lines go. Hopefully someone will take a picture of theirs and post it giving you a better idea. I will take a picture on mine tomorrow. Usually there is three nipples on the carburetor. One for oil from the oil pump, one for manifold vacuum and the other is the fuel inlet. The fuel inlet is visually the biggest (diamater) over the other two, then the vacuum line and then the oil. The fittings on the carburetor are brass. Hope this helps for now. Word of advice, make sure the oil line comming from the oil pump to the carb is not kinked, mine was and the bike overheated on me twice. Luckily the bike shuts dow when it gets too hot preventing major damage, now my brand new piston/rings are scorced up, but it still runs fine.