hi just bought a ntc3 second hand very pleased with it but i was razing it around and was running fine but it cut out, so took the shell off and the fuel line that goes to the carb had pop off from the tank,my problem is there seems to be two holes (and the hole at the top which goes to the pipe) now which one of the two holes on the body of the tank do i put the line to?? thanks alot rob