Welcome to the wonderful world of potty training a Yorkie. This is one subject I can give you a lot of advice on since it took 3 tries to get Sophie Kate potty trained.
1. Limit the space your Yorkie is in, no free roam of the house until he does his business outside. Treat free roam as a reward for good behavior. I would recommend a Ex Pen or a crate, we use a crate and Sophie Kate goes in it everytime we leave if we are going to be gone longer than 1 hour. If its a short trip we give her limited roam in our Master Bathroom.
2. Get a special treat as a reward for doing his business outside. In my case it was Cheerio's - they are only given for one reason going potty outdoors. Also give a lot of "good boys" and cheers, reward him for going where he is suppose to go.
3. Get your Yorkie on a schedule, we go for potty walks at 6:00 am, 7:30 am, 6:30 pm, 9:00 pm and right before bedtime - even on the weekends (should note I have a dogwalker who comes everyday around Noon also).
4. It sounds like your Yorkie may be like Sophie Kate and needs to walk before she poops. Sometimes it takes 15 minutes but you will figure out when he has to go and make him stay outside until he goes and then give him a treat (I gave treats for both pee and poop).
Good luck, do not get discourage.
This is just my advice but I am sure some of the other experienced owners can give you advice also.
__________________ Cheryl,Mom to  SophieKate |