The engine cranks strong but won't turn over? Ideas?

i believe so, it;s in the gas tank I think so it's hard to hear.

Check for spark to the plugs! If none most likely fix is have the distributor assembly replaced. Can 'carefully' pour a little bit of your lawn mower gas, from a cup, into the throttle body and see if it will start. Just a little gas! Then just turn the key to start NO THROTTLE! IF it tries to start fuel problem, IF not spark problem! BE CAREFUL. Or get some help.