Yes, it will destroy your bearing sooner than tiny lubed.
but how to you clean it with lighter fluid? do you just fill a cup with it and dunk it in the cup?
Dude, read what Samad tells you on the first post. S
Yes, let it soak for 5-10 minutes. Then swish it around in the cup. Better yet, use a small bottle with a cap so you can shake it. Then remove and shake the solvent out. Spin it or use compressed air to blow dry.
Canât find mineral spirits :-[ what about rubbing alcohol?
Well, as mrcnja just recently said in a thread, he was talking about ispropyl alcohol. Itâs a great solvent but it contains a decent percent of water which probably wont rust it a lot, but some tarnish might occur.
What about Butane Fuel?
Butane is a gas at room temperature. Either use mineral spirits or lighter fluid. Both are cheap and easily obtainable.
Clears throat
Dear Mr. Mod, Please sticky this
Raphael
Partly cloudyâŚ
It has been stickied for a couple of years now. Maybe itâs time to actually read the stickies. 
Ooohhhh
(Slaps fingers for being stupid)
I use 99.9% isopropyl achohol for cleaning things like tape heads(record, playback, erase) on my various reel to reel decks. Since the heads are actually exposed to the air the entire time, they evaporate completely and quickly. I use a special rubber cleaner on the pinch roller. Weâre not just talking simple reel to reel machines either. I use this on digital reel decks and big 2" machines as well, I just donât get to use those as frequently.
As far as using it t clean a bearing? Well, Iâd say coupled with some compressed air(like those office supply dusters, which I use for film transfers to help blow out dust that gets into the aperture) and movement, Iâd say should be OK. Blow around, move the bearing, blow some more. Do this a few times and you should be able to remove all the moisture. Better to do TOO much than TOO little. As long as youâre not throwing on a dry bearing, youâre should be fine.
Can you use rubbing alcohol as a cleaner?
Yes, but be sure to dry it very good and lightly lube the bearing afterwards. Alcohol contains water which can cause the bearing to rust. Mineral spirits or lighter fluid is a better choice.
which method is best for an unresponsive yoyo ? 
They all work great.
If you lube it though, you will have to break in the lube to make it unresponsive.
Depends what you want to do, need to do, and desired objectives.
My cleaning process has evolved quite a bit.
First, mineral spirits, with a good 15-30 minute soak. After this, I use small slips of paper to remove not only the remaining mineral spirits, but to pull out additional stuff. The bearing should be dry by the time this is done. Itâs then spun a bit to see how it does, and often timed for reference, compared to before I started. With some bearings packed with grease, this is super important. The next step is then to use acetone and soak for 10 minutes. I donât use the paper slip method at this point, itâs typically OK. I remove and let air dry, then spin and check spin times.
Any grit, it goes back into mineral spirits, then acetone again.
It should be completely clean at this point. I will typically Terrapin X treat the bearing after all this has been done.
Now if the yoyo is unresponsive, itâs the response, the gap, the string or the object at the other end of the string.
Do I only have to use paint thinner?
Sure. Paint thinner alone will work fine. I choose to use the two chemicals because it will pretty much clear out everything, but mostly since the Terrapin X treatment needs acetone, thatâs why itâs second. Mineral spirits takes longer to evaporate, so that leaves plenty of time to clean with the paper slips.
howâs Zippo lighter oil?