Hello and welcome to Just Answer,
Take the air filter off of it. Put a little bit of gas back into the hole that leads to the carburetor. Put the filter back on and then try to start it. If it starts and then stops then you likely have a plugged up jet in the carburetor. To correct this problem you will need to rebuild the carburetor.
got a plugged jet. How do I rebuild the carb, can I use "Mechanic in a Bottle" or do I need to send it to the shop?