Yea.. the only new thing in the suzuki z400 07' from the 06' is that the 07' has a Mikuni BSR36 fuel system and a 06' has a Mikuni BSR37 with TPS. now what the hell does that mean in making my chooice between 06 or 07' because i kno nothing about fuel systems. What year is better?

 

The 36mm is what was on the 03 04 bikes, not sure why they are going back, may just be a type o.... Either way, the 37 is a little better only because its a little bigger, but both suck compared to EFI or a FCR carb.