Thanks to the greatest people on this board. (1948 Kenmore)
I have done what you all said. I have greased the motor and used the sand paper on the drive wheel. It did help the motor alot. I am going to get a new drive wheel. Now when I sew on it she just hums with only slit bumps. Thanks for taking the time for answering my questions. Now I'm going out to the shed and see what else I can get up and running. Sandy