Exactly...have you changed needle settings, has the engine been out, have pressure/fuel line connections been crossed, are pressure or fuel lines kinked, is it equipped with a fuel filter, is the fuel filter plugged.....????????
Gotta ask the most questions you can 125cc......, if you're ever gonna learn to help someone... You can't ASSume the person asking the original question has vast experience or resources.... that's already helped you destroy one guys' engine, hasn't it?
ORIGINAL: 46u
Little more information would help to help you. Is the truck new, have you ever had it started, is the fuel good, are you priming it, does the glow plug have fuel on it when you take it out. Is it a RTR what engine and yes check glow plug and the glow plug igniter?