How to thread janome 664 sewing maching

SOURCE: Janome M100 mini sewing machine

Providing you have checked to make sure the needle is in correctly, if the machine will not pick up the thread then the machine will need retiming.

SOURCE: threading a sewing machine

What do you mean you are unable to pull the bobbin thread through, elaboration would help solve the problem...
I suspect I'm having the same problem with you if it's anything to do with the top thread looping around in the bobbin holder.

Damn machine!

:)

SOURCE: Janome sew mini will not pick up bobbin thread

Oil the machine first. Then, determine whether or not you need any parts at all.

SOURCE: How to thread bobbin in a Janome 415?

Here is a link to the manual that shows how to thread the bobbin. :)
http://www.janome.com/documents/File/ManualFile/415_Instr_book.pdf

SOURCE: SIMILAR PROBLEM OF TOP THREAD ACCUMULATING IN BOBBIN AREA

it sounds like a needle threading problem. if you have the instruction book, pull yout needle thread off the machine and re-thread as per the book ie presser foot up and make sure thread goes betwen tension discs and up over takeup lever.

to check needle tension is ok, lower presser foot and pull needle thread through needle, the needle thread should be tight enough to bend the needle a little.

goodluck,

scott.