I know with the old carb style bikes (my last roadstar yammie 1600 cc) was controllable with a simple knob turn. Idle was very temperature dependant. Ease of a carb and jet setup are good, but more disadvantages including lower fuel economy, and not as effective power delivery in varying situations and RPM power bands. Getting used to the R1's immediate power and blip on response was an eye opener from that previous torque beast. In the FZ - Idle control with fuel injection is mainly controlled by the (computer) ECU and not quite adjustable. I'm not a tuner by any means, I assume this can be mapped with an aftermarket power commander device to a higher value if needed but with more experience on the bike, you will find this is counter productive to what you really will want. IMMEDIATE POWER ON TAP.
Remember engine firing due to spark plug condition and air filter clean circulation can have an altering effect on this condition. Also, with the FZ6 I assume you can also get into diagnostic modes with your cluster and check the throttle body position in the open and closed positions digitally. Adjust if needed. Remember the bike will constantly adjust accordingly to where the ECU sees where the idle should sit, so make sure your default closed settings are accurate.
Last I remember, I idle at between 1000 and 1200k and find it a perfect value. Practice, practice and practice. Remember the friction zone I spoke about - and idle speed will not be a concern.