Hi, LaRae.
I'm glad you like your new Juki. It's a great machine, isn't it? I've quilted several quilts on this machine since I got it at the end of January and haven't had any trouble with it at all. My manual provides instructions on inserting the bobbin on page 15 of the manual. The instructions for inserting the needle are at the bottom of page 16 in the manual. I actually made photocopies of these pages and the pages on threading and lubricating the machine and keep them with my quilting gloves, rulers, etc. so they are readily available for reference. (I tend to forget things sometimes.) The Juki user manual I have is available online:
https://jukiquilting.com/media/catal...ons_manual.pdf
Enjoy your machine!