Jim, not quite sure where you are stuck. Attached image shows the individual parts for the top cover. Also, take a look at this decent video on here The service manual describes it as "Remove Engine Cover Insert (if equipped) and Cover

NOTE: Whenever possible, an impact wrench should be used to loosen nuts securing retractable starter.

1. Remove Torx screws securing engine cover insert.

2. Remove nuts securing engine cover. Remove engine cover.

Remove Engine Cover and Retractable Starter (if equipped)

NOTE: Whenever possible, an impact wrench should be used to loosen nuts securing retractable starter.

Remove nuts securing engine cover and retractable starter. Remove engine cover and retractable starter.

It is possible that all three studs have come loose when you tried to remove the three nuts. In that case it'll be a bit tough and you would have to try to take the engine cover off with it. Continue to turn the studs to see if they unscrew from the engine and apply some upward pressure on the cover.