I bought a (supposed)2000 YZ125 and fuel pours out onto the floor when you turn the gas on. So I bought a needle valve set to replace it. But it isn't anything like the one that I took out. I have looked everywhere for a vin number and can't find one. The only thing I found, was this on one side of the carb 00 85tb. The 00 is on top, and the 85TB is right below it. Can I use any year carb if it is complete? I would like to get this running and see if anything else is wrong. I thought this would be a quick fix, now I am getting scared.