I crashed my drone recently and it got a little wet. I trie drying it out for about a week and when I'd install the battery it would not power up. I let it set another week and tried it again and it powered up normally. So I try to fly it and only 3 motors work. I ordered  a new motor. Is there an easy way to test the old motor?

If youre not sure how to replace everything id say just send it in. i destroyed my drone a couple months ago, sent it in and got it back a week and a half later which was awesome. You can go on their services page and request a quote, youll send in your drone and theyll tell you how much it will be to fix it before they work on it.

Just to clarify, which components got wet? Was it fresh water, salt water or something else?