
I
don't have any measurements, but you basically just need
to shorten it up front to back and top to bottom. |

Make
sure you keep your crankcase tube connection. You can get
a crankcase filter if you don't want to bother. |

I
also had to cut the intake/filter cap at the same angle as
the rest of the box. |

To
fill in the airbox walls I cut off, I ended up using some
cardboard and duct tape. Make sure you seal it up pretty
good. I also kept the velocity stacks in the airbox at the
same height... I might cut them down a little bit later,
but things are working pretty well right now. |

Now
for the gas cap. I didn't want to have more than one key,
so I took my lock cylinder out of the old gas cap, and put
it in this one. Luckily Yamaha didn't change the number of
tumblers! They did however turn things around a bit, so the
FZR cylinder doesn't work without some help. |

Take
the cap off, and here you can see there's a little screw
sticking out of the bottom of the cylinder. That's basically
what you're going to need to do. Let's pretend that's not
there for now. Instead there's two little nubs sticking up
like the screw, but in different places. |

Take
the washer out... |

and
the rubber o-ring... |

and
the inner washer out. |

See
in there that little brass colored thing at the bottom...
that's what keeps the cylinder in the gas cap. You just need
to push that in towards the center of the cylinder... |

and
then you can push the cylinder out of the gas cap. Go slow
and watch that the tumblers don't spring out. It's easy enough
to figure out what order they go in, but try to keep it together. |

Ok,
now all I can show you is where you need this little screw.
There were two little nubs originally, but you need to file
them off. Find a little screw that's about the same size
as one of the nubs that you filed down... |

and
take a small drill bit and drill down a little ways - not
too far or you'll drill into the latch tumbler that keeps
the cylinder in. |

The
cylinder metal is soft enough that you don't need to tap
the hole, just screw the screw in until it's about this height. |

While
you have the cylinder out, you might as well give the tumblers
a good cleaning if they need it. Mine was pretty nasty as
it's about 10 years old. |

Now
to get the cylinder back in the gas cap, put the key in just
so the last two tumblers - the latch tumbler and the last
key tumbler - are sticking up. It's not shown here like that,
but if you have the key all the way in, that latch tumbler
won't go down and you won't get the cylinder back in. |

Use
something like a small flathead screwdriver to push the latch
tumbler down and insert the cylinder. Put the washers back
in and the rest of the gas cap together. |