kung sticker, try mo bugahan/soak ng WD40, then tanggalin mo using your fingers para hindi magasgas ang paint.
kung yung chrome na model number/logo, usually 3M na double adhesive yan (yung black), sapilitan ang pagtanggal dyan. pwede mong gamitan ng flat screwdriver, pero balutan mo ng tela.
I just warm it (the sticker) up...using a trapo na dip in very hot water (near boiling). Place it over the sticker for about a minute or two...the sticker glue will soften...you can even remove the sticker intact if done properly. Sa emblem I also use the dental floss and use the hot water treatment with the remaining double sided tape na natira.