Do Yorkies "smell bad"?

I have decided I want to get a Yorkie via a rescue and my friend is warning me that their skin smells bad, especially as they get older. She said hers is 75% Yorkie and her skin smells bad. Is this normal? Or is it a skin problem that’s relatively easy to clear up and care for?

EDIT: I just want to add that this will in no way sway me in my decision to get a Yorkie. I only want to be informed. I am thoroughly in love with the Yorkie breed. :^)