I wouldn’t spray WD-40 in the cylinder, I’d just drip a little 2-stroke oil in there. I’d pull the reed cage to make sure they look/feel ok, and while it’s off put a bit of oil under the piston down into the crankcase so the crank gets some oil. Turn it over by hand a few times.
I would also:
-take apart/rebuild your fuel pump
-replace your pulse line
-overhaul your clutch (at least pull the drum and clean it)
-Might want to run a little heavy on the oil in your fuel first time out
Have fun!