Until someone chimes in with specific info for this motor, go with this general procedure. Always start out on the lean side, needles just barely open, maybe 1/4 turn. Prime or choke, that should get gas into the cylinders and it should fire up, even if only for a few seconds. If it doesn’t keep running , open the needles another 1/4 turn and try again… keep this up until she keeps running. With two cycles, my experience is that too much fuel and flooding are the biggest hindrance to starting. So begin lean and progress to rich.
Joe B