my new kymco 300 just purchased came with 2 keys and one with a number on it.....the keys do not have a chip...so you should be able to dup at home depot.....the 300 however has a plastic round piece at the end used for opening and closing the ignition screen (theft prevention feature)...which i think will make the key harder to copy.....i will be finding out shortly..
my advice write the code on the key down ..somewhere.....and hide the spare in a place where you can remember where to retrieve it if necessary....