Windshield wiper motor help

I have a 1965 Valiant with the multi speed switch along with the electric washer control. First ride out today and found the wiper motor is working intermittently. It would swipe about 4 revolutions and stop, after a minute or two, it would work again. Problem seems consistent. Anyone seen this, know what to look for or what exactly is going on with my wipers? Any help is appreciated