It seems like you need to clean your bearing. Also, I believe that Protostars have floating axles, which means that they’re not anchored. At times, it may feel loose. Or, you may have stripped some of the threads, in which case you either need to get the yoyo retapped, or get a new axle (depending on if the axle or the yoyo is stripped).
In short, try cleaning the bearing before you do anything else, and see if the problem is fixed.
First, get your bearing alone and deshielded. Use the rolling method to remove your spacer. Basically find something thin that gets thicker, like a paint scraper. Slide the thin part in and roll up to the thick part. Right. Now deshield your bearing and clean it. Well done!
It could be the bearing dying. It might just have some crap in it. Let’s first assume you are going to clean the bearing. However, there’s a nasty surprise inside: those spacers on the bearing, so you gotta get those off first:
Second, clean your bearing out with acetone. I know others say mineral spirits and lighter fluid. I like acetone, that’s what I use, that’s what I recommend.
Buy a can of compressed air, one of those office dusters. After you remove the bearing, you want to blast out any crud from your bearing.
Clean your bearing again.
How long does it spin in a flick ones dry? My standard is 20 seconds, but if you can get 10, the bearing is fine.
If you’re going to lube, do so very sparingly. Dip a needle or long pin into thin lube, touch that to 1 or 2 balls in the bearing, spin the bearing. The slow down should be minimal.
Re-shield the bearing, replace the spacers back into the bearing, put the whole spacer/bearing thing into the yoyo, screw back together and have fun.
If the bearing is still acting like that, get a new CBC CenterTrac
Deshield it first, then clean it, then dip a pin in some lube, shake off the excess, then touch the pin to a ball. After that, spin the bearing around on a pencil tip to get rid of any extra lube. Then you can put the shields back on the bearing (if you want to do that. This part’s all preference).
You know the balls in a bearing? If you can see them it’s deshielded. If you can’t and there’s this thing covering them, those are the shields, and you need to take them out.
they are very simple to remove. take a pin or needle and then find the open part of the c clip. just pry the little c clip off and then the shield should come right off…