Need help with decals whenever I try to move them from the sheet this happens.

I also read that you need to first get rid of the yellowing in the decals? Should I do that first?

PS: this is my first decal and have no idea what to do?

I am afraid that they are old and damaged. I have heard that exposing them to he sun may remove the yellowish tone (sometimes), and for the breakage there is a product that should fix it:

http://www.microscale.com/Merchant2/merchant.mvc?Session_ID=9aca72c93d3d4b51d055e0ba74c1daac&Screen=PROD&Store_Code=MD&Product_Code=MI-12&Category_Code=FINPROD

Sometimes it works also a thin coat of varnish over the decal (carefully applied) before wetting it.

All in all, I think it would be better to get new decals from an aftermarket company, or buy this set from someone who has not used it...

I have to admit I bought the kit and the owner told me it was 20+ years old.

Anyway is it also a good idea to scan the decals and make my own? I really want to finish this kit T__T

I have also heard that sealing them in a Ziploc bag and putting them in the sun will remove the yellowing, but I have not tried it.

As far as their crumbling, I think giving them a few coats of Microscale Liquid Decal Film or an equivalent product should fix that for the most part.

If all else fails, can go online and look for either an aftermarket decal sheet, a secondhand decal sheet on ebay, or contact the manufacturer to see if you can get a replacement sheet.

First you should have access to a printer that can print white, and they are quite rare. And even if you have it, I doubt you could get a good quality from a scan and reprint...

I heard a tip that seems to work. Spray a thin layer of dullcoat from a rattle can over them first. Make sure it's very thin or it may dissolve the decals. When the first very thin coat has dried, spray another on. The dullcoat will add strength to the decal film.