I recently bought a Singer 16-188. It was very dirty and I have replaced some parts, but it was a steal at $25.00. I am an experienced seamstress, so threading a machine isn't new to me, however, I am not sure I have this correct. I have searched and searched the internet for a diagram of how to thread this machine and I am still empty handed. When I try to sew with the machine after I have it threaded (at least my guess at threading), it won't stitch. It is connecting around the bobbin, so I don't really know what the issue is. If anyone has a diagram of how to properly thread this machine or has any idea of why it isn't stitching, I would really appreciate the input. Thank you!