Hello to all! i am new here,I curently own a 2002 gsxr 750 and i think i found a good deal on a Busa. I can get a repo'd 2002 hayabusa(silver/grey) for $4,300.00. it is lowered, has full yosh carbon single exhaust,and chrome triple tree. The only thing i'm a little weary about is that it has 30K miles. is this a concerne? How many miles are these motors generaly good for? When i rev it up after ideling for a while it smokes a little. i can't tell if it's rich or if it's blow by. Is it worth it? could i sell it for more?