Fried bike

[Shoelaces]

So recently I bought my first motorcycle for $200. The story was that the man I purchased the bike from bought it wrecked and then he fried the bike. He replaced the rectifier and other electrical components. He said he never checked the stator and then he decided to be done with the project. Today when I opened up the case I got oil absolutely everywhere but could not determine whether or not the stator was bad. The bike did turn over when I was checking it out so I really have no clue.he wired the bike by hand without a really pristine harness so I ordered a new one. Any help or advice would be greatly appreciated. Thanks in advance.