Whatever you decide to do, please CLEAN the draft tube thoroughly prior to reinstalling it- I think they are typically FULL of junk. Both of mine were nearly completely blocked with sludge up inside the perforated baffling. I could not pass any air through one of them.
I soaked it in kerosene for a week and then used compressed air and water flushed it. Carb cleaner might work even better.... some recommend baking it on a BBQ to turn everything inside to ash, then flushing it. Once you have it off, try blowing through it, and you'll see what I mean....
