sounds like he needs to remove the plug,,,blow it off real good,,,spin the engine to make sre its cleared out,,,reinstall the plug close both needles ,,open both 1 1/2 turns,,,,now youre ready to try to start,,,open the carb so the butterfly is barely cracked,,,,choke and turn on ign,,,flip until it fires and quits,,,ok now its slightly flooded and the carb is full of gas,,,open the choke and be careful start flipping prop usually by the 3rd or 4th flip it should start,,treat it like it will start on every flip so you dont loose fingers,,if this dosent work you may have allowed debris into the carb,,theres a very fine screen that easily cloggs its under the plate with the one screw,,,look at the you tube videos where they start gassers,,also im sure there are articles on how to start a gas 2 stroke in model magazines and most likely in rcu ,,once youve got it started let it warm up,,if it idles ok then advance to full power,if it sags you may have to slightly adjust the low speed then if it seems too rick or lean at high speed addust the high speed ,just dont run it rich like a glow engine,and not too lean because as the prop unloads in the air ,it will need the small ,amount of extra fuel,,,if all else fails ,you may have another issue.