Try this, from the greener forum.
A problem among folding knives that seem to plague every brand is the infamous off center blade. Sometimes the blade is slightly off center, other times, it is completely rubbing the liner. Here is my method of correcting this issue.
What you'll need to center your blade are your bit drivers, a folded piece of paper, and of course, the knife you want to fix.
First, tighten the pivot screw as much as you can.
Next, loosen the body screws. They don't need to be removed. Do this for both sides.
Next, push the blade to the OPPOSITE liner that it is offcenter to.
While pushing the blade to the other side, wedge your piece of paper to keep the blade against the opposite liner.
Now, tighten up your body screws. Remember not to over tighten your screws!
You can now remove the piece of paper you had wedged next to your blade. Check the blade centering.
If the blade is still offcenter, repeat steps 2 through 5. If the blade is where you want it, adjust your pivot screw to where you like.
Credit goes to AlexB from USN.
-M