Hi Mikey, theres a choke lever on the right side of the carby that you move up so the engine can cold-start. As the engine warms up, you move it back down to its normal position. Try that and see if it works..
What Syd said! Also there is a priming button on the side of the carb. Try holding that down for a count of 5 before you start out. Where in AZ are you?