Gonna pull the flywheel and check that crank case seal. At this point it's the only thing I can think of but makes no sense we pull started it and it ran was lean and leaking air somewhere it would still fire up on one kick after being pull started I fired it up 4 times then rode it into the bed of my truck the very next day it wouldn't even fire up. If the crank case seal is leaking doesn't make sense why it would start 4 times in a row first kick and now not fire at all unless it was leaking and that last time it fired up it came all the way out or started leaking even more than before.