FZ v2 comes with an Capacitor Discharge Ignition (cdi ignition) system while the FZS v2 gets a Transistor Controlled Ignition (TCI ignition) system which is a bit more efficient than the FZ ...
where Yamaha FZ 2.0 is go head to head to gixxer here. At the performance point gixxer 155 cc motor churns 14 PS of power where FZ 2.0 149 CC has peak power of 13.1 PS . Then power delivery is ...