all you got to do to check the fuel lines is take off the one that connects to the exhaust and blow in it with fuel in the tank it should blow fuel up to the carb if it doesnt check your o-ring in the gas tank
ORIGINAL: nitrospeed33
is your glow plug good? and did you have fuel(dumb question)
. make sure your screws are good and tight. you could have a cut fuel line. That would cause the engine to stop and not start. or your screws that hold on the coolong head could be loose. its possible. Happened to me. Could be your prob, but i htink its the fuel line. check it.hope this works