Oh dear friends, I clearly did not give enough information!! (sorry!!) Well, it runs beautifully IF there is no thread and no material involved. As soon as it is threaded the wheel just does not want to turn? The motor is running but with thread and/or material, no go... My friends and I took it to our local Singer expert and he, too, is baffled. I must tell you that he is "fixin' to retire" at 98!! Yes! He still goes to his shop every day! He's "workin' on it"... wish him luck!