Hi
I had the same problem with the 301 and a featherweight. I replaced the oil drip pad on the underside of the machine and that helped a lot. I bought them online from a company (in Florida I think) that sold fetherweight parts. Inexpensive at about $3.00 each and very simple to replace. Take off the bottom and check to see how dirty/oily the pad is. If you think this could help, then google to find a seller. Dryer sheets and exposure to air will help too.