How To Thread A Brother Project 1361 Sewing Machine?

The size depends on the fabric you are sewing.  Smaller, 70/10 for lightweight, 80/12 medium and 90/`14 for heavy are standard.  There are specialty needles for denim and leather as well as ball point needles for knits.  You may use Schmetz brand needles in your machine.  I have one so I know :^)