Respooling a baitcasting reel is very important. It must be done ever so often to be able to catch the big fish. Respooling a reel is something that i learned from my grandfather. He was the one who taught me how to fish so naturally he was the one who taught me how to respool a reel. One reason you put fresh line on your reels is so the line doesn't kink when you cast. Another reason you respool you reels is so the line doesn't get UV damage and create line memory.
Step 1: Tying the Line Around the Spool
tying the line around the spool is not hard to do. A lot of people think you need a big fancy knot to tie the line to the spool but two simple over hand knots work fine. If you were fishing for bigger fish that might pull a lot of drag I would consider user a more formal knot.
Step 2: Reeling the Line on to the Reel
Once you have a secure knot tied around the spool you can begin reeling line on to the spool. To do this all you need to do is already have the line through the line guides, have someone at the end of your rod holding the spool between a pencil or pen so the line comes off smoothly. Before you start reeling in the line, clinch it between your thumb and index finger the create tension on the line so it goes on the spool tightly.
Step 3: Don't Over Fill the Spool
When spooling a reel it is easy to over fill it with line. Over filling the spool makes casting very difficult, casting with a over filled reel will almost always guarantee a line birds nest. When spooling the line you want it to stop it just before the top of the spool.