I just went fishing today and a bass dove and broke my line >

I'm going to put some 8lb line on tomorrow but I have never done it before...when I take off my old line, will there be something I need to thread my line through on the reel (spinning reel) after I put it through all the guides?

Just tie it on the spool with the bail open.  When you close the bail, start reeling and keep tension on the line while you do.  Stop after a few cranks and see if the line is twisted.  If it is, flip the spool of new line over and continue until it is filled.

Adjust the drag this time  

Go fish!

thanks man

There is an alternative which I use and many others do as well. That is to take off just enough of the old line so there's room to put on 50-60 yards of new line. It's more economical and you generally don't need more line for bass fishing. The line that stays on the reel is called "backing." I tie the new line to the backing with a uni-to-uni knot.

There is an alternative which I use and many others do as well. That is to take off just enough of the old line so there's room to put on 50-60 yards of new line. It's more economical and you generally don't need more line for bass fishing. The line that stays on the reel is called "backing." I tie the new line to the backing with a uni-to-uni knot.

I do the same thing !

There is an alternative which I use and many others do as well. That is to take off just enough of the old line so there's room to put on 50-60 yards of new line. It's more economical and you generally don't need more line for bass fishing. The line that stays on the reel is called "backing." I tie the new line to the backing with a uni-to-uni knot.

That's a good point.  There's really not a good reason not to do this.  I just thought I'd start slow with the OP since he seems to be a beginner.