I don't think you guys are right. Here's my attempt:
the FZ6 comes in 2 versions : naked and faired
1) the naked one is called FZ6 (sometimes people will write FZ6N, but that's not the official name)
2) the faired one is called FZ6 Fazer (so the term "Fazer" applies to the fairings)
The 2007 model is very different from the previous models. Here's what changed (these apply for the 2008 models as well obviously):
* Optimized fuel injection (FI) system mapping.
* Redesigned fairing and windscreen.
* New instrument cluster with analog tachometer and digital speedometer (similar to the FZ1).
* New four-piston monoblock brake calipers for the front brake.
* Alumite-finished front forks with revised damping.
* A 3-way catalytic converter.
* A new seat design.
* A new rear swingarm.
* New passenger pegs.
The term "S2" is new with the 2007 models, it applies to all 98hp versions.
As from 2007 there are 4 versions:
1) 2007 FZ6 S2 (naked, 98hp)
2) 2007 FZ6 S2 Fazer (faired, 98hp)
These two models are the ones with all the changes that I described above.
The next two models are also "new" from 2007, BUT : they are just 2006 models with a detuned engine. So basiscally these are 2006 FZ6's with a 78hp eingine :
3) 2007 FZ6 (naked 78hp, which is basically a detuned 2006 FZ6)
4) 2007 FZ6 Fazer (faired, 78hp, which is a detuned 2006 FZ6 Fazer)
I bought a 2007 S2 Fazer, because the changes from the 2006 model were very important to me (especially the improved FI mapping, new seat, new swingarm new instrument cluster). The 78hp models have none of that.
Makes sense?
Lucky bastard!
