EX250F key blanks: Difference between revisions

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The Ilco X266 (also marked KA16) will work in the EX250, but it's really not the correct key. The proper blank (X103) is common enough. On the other hand, the modification required is easy for a locksmith to do, and if you have to choose between using an X266 and not getting a key made, you might want to go this route. Once the key is modified, it will work. It won't work at all in unmodified form. If you like, show this section of the FAQ to the locksmith for reference.  
The Ilco X266 (also marked KA16) will work in the EX250, but it's really not the correct key. The proper blank (X103) is common enough. On the other hand, the modification required is easy for a locksmith to do, and if you have to choose between using an X266 and not getting a key made, you might want to go this route. Once the key is modified, it will work. It won't work at all in unmodified form. If you like, show this section of the FAQ to the locksmith for reference.  


The X266 is not listed for the Ninja 250 but rather the Concours. This blank is also all-metal, but its shape is the same as the OEM key. The problem with the X266 is that there is a small ridge on each edge that prevents the key from being fully inserted into the Ninja 250 lock cylinders. The amount of interference is fairly small (less than a millimeter) but that is enough to cause problems. Without a minor modification to the key, an X266/KA16 blank cut to fit the ignition/seat/helmet locks will not work in the fuel filler cap.
The X266 is not listed for the Ninja 250 but rather the Concours. This blank is also all-metal, but its shape is the same as the OEM key. The problem with the X266 is that there is a small ridge on each edge that prevents the key from being fully inserted into the Ninja 250 lock cylinders. The amount of interference is fairly small (less than a millimeter) but that is enough to cause problems. Without a minor modification to the key, an X266/KA16 blank cut to fit the fuel filler cap, seat, and helmet locks will not work in the ignition because the side ridges prevent it from inserting fully into the lock cylinder. Of all the locks on the EX250F, the ignition has the deepest insertion.


Here's a closeup of the ridge in question:
Here's a closeup of the ridge in question: