the piston is installed correctly moves freely in the cylinder the way it should the head bolts are torqued to specified amount and the fuel line is clear so i can see the fuel go right up to the carb i know its getting there. when i take the carb off i can hear the gas in the bottom portion. i tried the starter fluid in the cylinder i cant tell if its making a difference because it still isn't starting. the only thing i could think of is that there is a clog in the carb somewhere. i should probably just take it apart and see what is going on although i dont see why that would happen. its brand new as in took it out of the box and attached it. thanks for the help, im just really stuck on this.