Did you try priming the engine?????? When trying to start it cover the exhaust stinger with your finger and look at the fuel line, you should be able to see fuel go up through the fuel line and get to the carb. Once the fuel is at the carb take your finger off and try and start it, if that doesnt work you may have a blockage within the carb. Take the carb off and clean the carb out, make sure to note where the needles are(how many turns out they are from closed) so you know where to put them back when your done. Use a carb cleaner solution or you can use some fuel to clean the carb with. Just make sure not to bend the needles when handling them.