You'll be damn funny. No, the included screws don't fit the Ninja 400, but would you still use those crappy mounts? Be thankful you had the opportunity to upgrade to a grade 10 or 12 bolt if you were smart enough to do so. If not, fine. You're probably going to throw your bike off the stand anyway. They cost $18. I'm only taking off a star because I was annoyed with the quality of the screw that came with it. The coils work fine.
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