Check the glow plug... if it's good.. close then open the main needle about 3
turns... Make sure your getting fuel to the carb, and you have no air bubbles
in your line to the carb. and give her a try... Hopefully you have an electric
starter, some engines can be a bear to start.. If she starts, I usually use the
needle valve as my throttle... ie... I go wide open on the carb.. and adjust the
rpm's by opening the needle valve so as the proper RPM/rich for break-in..
Just follow your manual.... If all the above is good.. and it still does not start
insure the the carb. is fully seated on the engine and the fuel nipple is on there
good.. Hope this helps