Mine's an '06 and bought brand new in April of '07, so just few months over 3 years.
43,700 miles
Spark Plugs: on 2nd set, inserted Iridium at 20,000 miles
Air Filter: Inserted K & N at 15,000 miles
Replaced Chain & both Sprocket: 30,000 miles
Replaced Front springs & oil at 30,000 miles
Replaced headlamp bulbs, & license plate light: more than once
Brake Light: Still original bulbs
Brake pads: Still on original pads
Brake fluid: Still original front & back.
Cables (brake, clutch, throttle) still original
Valve adjustment: None
Tires: Currently on 3rd set.
Oil & Filter: changed every 3-3500 miles.
Battery: Replaced after two years, left power on and would no longer hold charge.
Yeah, I seem to stretch things out a bit.
Only issue: Replaced Steering Head Bearings, very common problem with all FZ6's. Upgraded to All Balls.