You have to take into consideration that a Yorkshire Terrier equals a small bladder that won't hold as much (or for as long). So if you are late on your way home from work then you might wind up cleaning up an accident.
Living in an apartment or home without a big yard is no problem for the Yorkshire Terrier. These pets only need a small space to do their business which means that a flowerbed can work wonders.
Lots of people poke fun at Yorkies in sweaters but in reality they help to keep the dog warm during the cold winter months. The dramatic change between the warmth of the house to the cold or bad weather outside is hard on a Yorkie's body.
The sudden chill can also distract them from the potty business and cause them to run back inside. Once warm again, the urge hits and there's nowhere to go but the rug. You can make this easier on your Yorkshire Terrier by getting him a warm sweater for cold weather.
Some Yorkies will refuse to go out in bad weather unless they see you have a sweater for them to wear. This can be during the winter or even when it's raining.
You have to plan options. Perhaps you can keep a papered box in the garage as a backup potty during bad weather. Only use this for limited times during the year so that you don't discourage the dog from going outside to his regular potty spots.
If your Yorkshire Terrier goes outdoors in a yard or in the park, be alert as to where he's walking. Keep your dog away from tall grass or bushes. While he's busy trying to sniff out the right spot, he's easy prey for snakes in tall grass.
Yorkie owners need to remember to be courteous to their neighbors. Just because your dog's feces is small does not mean your neighbor will not mind if it is laying in their yard. Clean up after your dog!
This is especially good measure since dog poop can be easily stepped on and dragged into the home. Most of the time you won't notice until it's too late and your carpet is dirtied up. Your neighbors will not appreciate this so be responsible and clean up messes promptly.
Housetraining works just the same for large dogs as it does for small ones like Yorkies. You can start with crate training and work to establish a routine for potty breaks. Many little dogs are spoiled because they constantly sit in their owner's lap. This is where your positive reinforcement, praise and affection can come in handy.