Reel question

[mdryer]

Hello

I feel real dumb asking this question, but I was given an expensive Shimano reel. There is no guide to feed the line back and forth when you reel it in, it is open. How do you keep the line from bulking up in one part of the spool when you crank the line back in? I want to run lead core off this reel. Thanks in advance.

[carpedium]

use your left thumb to guide it on