I watched this in early 90s. It was a colored movie. I was below 10 at that time. We watched it in VHS and remember someone fast forwarded a kiss/ sex scene.
Thing I remember about the movie is a wolf like man following a young couple. The wolf man got two large teeth to the side of his mouth and wore a blue jacket as far as I remember. Couple go to motel, etc etc to get rid of him, but he eventually catches them, and then they started running again,
There is one scene in the movie in the latter half, the couple travel by train, and the wolf man also followed them there. There was a bit of a gunfight and stuff. May be it was the climax.
Please help, I so like to watch this again.