i haddthe same questiosn as you on an old engine...id never taken one apart before so i was worried even though it wasnt a $130 engine like yours ........i came to the conclusion that , in mycase, screw it ill take it apart to see whats in there.....ive always been a guy to do that kinda stuff.......your case is a bit different since its a brand new engine and you are worried you'll screw it up.....look at it this way .....sooner or later your gonna have to rebuild it......why not now, since your at the cross road of taking it apart or not, go for it. you'll know exactly what you have and you'll be one up on the rebuild.........now if your still scared someone with experience in that engine will tell you what happened on why it wont move.