I really don’t think that the caps are removable. From what I’ve seen, they look like they’re glued on or something. You can try duct tape, and if that doesn’t work, you might wanna try the knife.
There’s a trick that (I think) works with all capped Duncans (Except the Mg).
What you do is, you take the side with the axle, and press the axle against a table, or something hard. The cap should pop out, along with the axle. Put the axle on the other side of the yo-yo and repeat.
Like the FHZ, this should have removable caps. You could do the old axle pop-off or you could try to get something under the cap and pry it off.
Now while I forgot to press the post button, iRon posted the pop-off method. Now that method can actually crack the cap if you do it the wrong way. You should not try to slowly press the cap out. If you do so, you might risk cracking your caps. Now this might sound counter-intuitive, but you should slam the axle onto something hard. And then I mean slam. You have to give the cap room to pop out though. And again, this may sound weird and I think it sounds really risky, but Kyo seems to know what he’s doing:
Cool…it sounds logical.Im gonna give it a try when i get home…btw will the axle also pop off along with the axle???If it doesnt pop along how do you take off the other sides cap??? Thanks guys!!!
Or you can just take a sharp object and pry them out. I think the first couple of replies to this thread are… Not very helpful at all, and those users should probably try some more yoyos before giving out advice. I use a point of a compass to pry them out. Never damaged a cap and they still go back clean.