It would still be a good idea to check the forks like
@Hayabusa Wannabe said
(he has a mechanical brain...but apparently his hands don't listen to him, lol)
I would put it on stands(front fork-lift stand) loosen the tubes, make sure they are squared and not in a bind, measure their heigth in the top clamp, snug and then torque.
I would go over the bike with anti-seize, loc-tite, and a torque wrench,
Also consider that there are some Really Good dealerships out there...but most sadly are not.
So, you have no idea if the bike was assembled correctly, by someone who cared, or a hack that threw it together.
As well as if or what the original owner may or may not have done.
I have yet to buy or even see a new bike with both forks set the same(it should be the first thing checked and set, but just another thing overlooked).
Regardless, a Hayabusa is a great motorcycle, and it can handle alot of abuse.
I think once you work a few bugs out, and get up to speed on the Busa, you'll be fine, and really be able to get used to the and find out first hand what an excellent, does everything well bike that you stumbled into.