So just how do you thread a bobbin. The thread is too thin and flimsly to work it down the bobbin tube. I tried a dental floss threader but it has a loop and a straight piece and when you stick the straight piece down the tube it stops when the loop touches the top as at that point it is too big. So how do thread the bobbin?

They sell bobbin threaders. I learned that the hard way too, LOL!!!

Start the thread in the tube then suck the other end like a straw. The thread will come through the bobbin.

The above two. I always keep a threader in my kit.

i make sure its in the tube then suck it out, it works most of the time

where do you buy your bobbin threader?

I wasnt able to suck it thru but a girl I work with can.

You can get a needle threader at a sewing supply, or just make one out of thin wire. Or just tie with monofilament; it's easy to thread.

I wasnt able to suck it thru but a girl I work with can.

Easier if you "wet it" first...trust me. Look it up.

Here is a link on different methods.
http://globalflyfisher.com/tie-better-tying-tools/threading-a-bobbin

Sucking it through usually works. I prefer that to a threading tool.

I bought mine at Bass Pro