Pull all the plugs,are they all fuel soaked? if so great,at least we're positive fuel is getting there. Disable the ignition and whirl it over a few times to purge the cylinders,now do a compression test to ensure you can sustain fire.If good,clean your plugs,and put back all but no1,leaving ignition disabled,and whirl it overlistening for the rush of air coming out.We're trying to catch no1 just past firing. Now pull the cap and see where the rotor is pointing,up front? the timing is close,Between 9 and 6 o'clock,you are too far out. Hope this helps you ,Hank