[Ghostt]

A real locksmith should be able to cut a key, if you get the code off the back of the helmet lock.

What if I lose all my keys?

Well, hopefully you read this and did some preparation. There is a key code that comes with the keys on all new vehicles. If you do not have the code tag that should have come with the keys, take the time now to unlock the helmet lock, unscrew the one phillips head screw that holds it on, look on the back of it, and write down the number you find (usually ZXXXX) in a couple of good places, one of which is the inside cover of your owner's manual. It's much easier to take the helmet lock off when you have a key than it is to destroy it should you somehow wind up with no keys.

This is a picture of the backside of the lock assembly. The locating pin on the left fits into the frame, and the Phillips head screw seen on the right actually comes in from the other side of the assembly and secures the assembly to the frame. The screw is protected from tampering or removal from the bike by the sliding rod that you hang your helmet D-ring through when securing your helmet. The key code is in the whited-out area.

http://faq.ninja250.org/wiki/What_do..._about_keys%3F

Also here's another link on key blanks
http://faq.ninja250.org/wiki/EX250F_key_blanks

Good luck.