Need Help
 

I have a Toyota Mini sewing machine-Model 6004. Found a manual,but it does not cover my problem...The bobbin thread does not get picked up by the needle-which does a beautiful stitch-but not locked,,has right bobbin-needle..any suggestions

Make sure the needle is not in backwards. If the groove on the needle is not in the correct place (usually at the back - but not always - I had an industrial machine that required the groove be facing me) the hook cannot pick up the thread.

If you're using a universal needle and you know that it's oriented correctly and seated high enough in the needle clamp, switch to a sharp and see if that doesn't clear it up.

Also make sure you're using the right size needle for the thread you're using in the needle - if the needle is too big, it doesn't allow the fabric to apply enough friction to the thread as the needle rises. No loop is formed for the hook to catch, so the stitch is skipped. (ie: a size 16 needle with 60 or 70 wt thread - go to a size 10, 11 or 12 needle, instead)

Are you placing the needle with the long groove to the front and threading it front to back?

Open the bobbin case door and watch the action of the hook. Does the hook rotate or oscillate back and forth? If not there maybe a broken gear. Or the hook timing may be off. These were inexpensive machines and they can get out of timing very easily and may not be worth fixing.