CF650nk few questions

So i'm seriously planning to buy this bike but few questions.. as this one is second hand and from 2011
is there any modifications what they have done between 2011-2013?

Second is as i live in Vietnam where they like to forger engine numbers and all ! how is engine number should look like in original?
This one it was all black and stamped as was frame number in "neck" of the bike but of course this one has red frame.

ou and yes. this one did not even have that plate in side of the frame on right side! that what made me think foul play :)

So Engine number was below this horn in front of engine. in this picture it looks that its done same way but cant be sure 100%



http://www.650nk.com.au/assets/galleries/0135.jpg

Hey the Waldo, this all looks legit to me and the bike should also have a frame number where the forks join on. These 2 numbers usually are in conjunction with a code from the factory so its harder to swap engines/frames etc in the event of theft or fraud, I'm not sure about CFMOTO's though so you should speak to the Guru's of all things CFMOTO 'Bikerdoc or Euphonis' There always willing to help.