Rick...
Welcome to the forum...
Lon setting engines should be no problem
Take the spark plug out and dump some Hoppies #9 into it OR spray some PB blaster into the cylinder.
Let it set for a day or two with the PB or #9 setting on the top of the piston, you may have to turn the engine on its side for that ... then turn it over by hand a couple times with the spark plug still out... allow it to set another day with fresh #9 or PB in it.
spin it over to blow out the excess, change the oil, put in a good synthetic to clean up the bottom end...
Clean up the fuel system and with a fresh plug you should be set to go... :smile:KennyV