I am working on a Singer 14u 85b serger with differential feed. This is a 5 thread serger. Old but very nice. The machine was very dry and frozen up. That problem is no more. She is free and turning well. Problem is the timin g is completely screwed up. I have the service manual but I need a starting point or zero point to start from. Any ideas or suggestions? I have been working on sewing machines for a long time BUT I am having prob lems getting started on this serger.
Fred