Fresh mill. Bad happenings? What to check for?

Thanks. Friday I am planning on taking it out for a shake down then hammer run. Should dry it out. The reason I was freaking out is because....
1 - Fresh engine.
2 - This is only my second build and did not have this issue the first go around.
3 - This thing has been trying me the whole build with lots of unexpected set backs so I guess I am expecting the worst.