I just have a tiny jar with acetone in it.
I drop the incabloc setting into it, leave it for a minute or two then swirl them around in the jar by gently swirling the jar and lift them up into a glass bowel that has watch paper in it to help wick away the acetone. If needed I hold them with tweezers and give them a puff or two from my blower.
Some times you can find the cap jewel stuck into the fitting due to old oil 'gluing' it in, so it may need longer in the acetone to separate, and if it is really stuck and after several cleaning still won't come out you may need to use an old balance staff to push it out by fitting it through the jewel hole and pushing on the cap jewel.
Once cleaned be sure to inspect the cap jewel as it may still have old oil stuck to it. If it does get some peg wood sharpened to a point and hole the cap jewel with tweezers and gently rub off the old oil with the peg wood, then clean it again and inspect and if still dirty repeat.
Mark has a great video on YouTube showing you how to oil and assemble incablock settings.
I try to keep rodico away from cleaning solutions as you may find the naphta will start to disolve it and leave you with even more mess to clean.
I only use acetone to clean the balance and cap jewels as it is pretty nasty stuff, I use naphta (Shelite in Australia) as my rinse after cleaning with a watch cleaning solution, but if you are just starting out naphta will do for it all.