Never had a Stag, have a TR 4A, but I have read several articles that indicated there were numerous problems. I like the looks but what do you all think about the problem areas?
As Wayne says, all the problems are sorted, but that does not mean that everyone applies the remedies correctly.

When reading an article regarding Triumph Stags, you always need to consider the source and ask yourself "has this person ever owned a Triumph Stag and belonged to a club that knows how to make them reliable?"

Both of those together are very important because simply owning one and not knowing how to make it reliable, or simply doing a little investigative journalism usually nets a negative article by an unknowing ignorant person.

I must warn you that there is a nasty Triumph Stag disease called "
gotta'aveone-omore". You catch it once you see one, but if you hear and see one the infection is instant. This disease is only fatal if the significant other in your life does not catch the disease.
So if you get inflicted by "
gotta'aveone-omore" , make sure you get properly innoculated by seeking out the proper facts and information on your diagnosis from reputable sources like the Triumph Stag Club USA. This club has a lot of great practicioners who are expert in the Stag disease. You can usually never be cured of the disease, but our club will help make the symptoms enjoyable.