I have about 5 acres to mow. I like to do it myself because I enjoy it, it's done right and I don't have a bunch of $10/hour guys roaming around my property every week. Part of my $20,000 investment in lawn care equipment is a $400 push mower.
Put in fresh premium gas, change the plug and turn it over slowly with the plug wire close to the
head to see if there is a good spark. If so connect the wire to the plug and give it a strong pull.
Should start. If it's a 2 cycle while the plug us out use a flashlight and look in the plug hole at the cylinder wall for scoring of the wall. Might need a bit heavier oil mix to make it run.