Sewing with a serger sewing machine can be quite difficult, if you're lucky enough to own one. Even threading the beastly sewing machine can be pretty tricky. But this two-part video tutorial should help you to properly thread one. This covers the threading of a Singer Differential-Feed Finishing Touch serger sewing machine (14SH654), which has 4/3 thread capability. Singer also has a PDF available with detailed threading instructions.