Full setup would be helpful - issue could be a pile of things. These kits aren't that hard to get running.
If it cant run go back through and check everything. Soapy water and crank it over and look for bubbles.
Whenever a hobbit doesn't run I always suspect airleak at the intake. And that's usually where it is.
Piston in the right direction? good, fresh spark plug getting good fat spark? what about your jetting?