Originally Posted by
Havplenty
the
vintage machine group swears by tri-flow. it's on my list of oils to get. you can also ask on that thread about your kenmore and its issues. maybe someone can assist or have had the same issues and can offer some advice.
I agree with Havplenty. Post a pic of your sewing machine on the Vintage board. I am sure you will get a lot of suggestions. I also agree with some of the others that the real issue may be the foot controller.