First accustom your yorky to the leash. This is generally a simple matter if he accepts the regular collar. Once he has worm the regular collar for a while, remove it and slip his choke collar on.
Attach the leash to the choke collar and allow it to fall or drag on the floor for a while to get him accustomed to feeling something around his neck.
Later, when you pull on it, it will be familiar, and he will not be afraid. Don’t let him play with this leash now, or he may constantly bite at it later.
When you pick up the leash and put pressure on it, some dogs will fight like a newly bridled colt, but hold on firmly. If you insist, your yorky will soon realize that there is no point in struggling.
Start to walk your yorky around on the leash. He will probably either remain behind or lunge ahead. Just continue walking until he realizes there is no point to struggling and he might as well walk. When he does, reassure and praise him.
Avoid taking him to strange surroundings, and as you walk, talk to him and pet him frequently until he becomes used to the leash. Do not attempt to train your yorky to heel at this time; simply try to accustom him to being restricted on the end of the leash.
Always remember to be firm in teaching your yorky. Having him walk on a leash means he shouldn’t go anywhere unless you call him. Teaching you and him how to walk properly on a leash comes in the regular training sessions.
Patting the floor on your knee and coaxing the yorky to come along will teach your yorky to have no real fear of the leash. Do not drag him roughly at first. The yorky may apply all four brakes and refuse to budge.
Pull the dog slowly along the floor until he makes up his mind he is going to walk.
Keep in mind that yorkys associate things, so repetition is important; as taught; training commands are just to start the association process in your yorky’s brain – a prelude to all training. Do not link commands at this point, but make sure your yorky understands one command at a time.

