The CBZ with the largest engine among the three has appealed to the power-conscious buyer and delivers good Performance in a slightly sporty fashion with the power coming in a bit higher up in the rpm range. The CBZ comes equipped with one of the most complex carburetors seen on any bike in India. It features an accelerator pump, and also a valve that shuts off fresh air on deceleration to keep irritating afterburn bangs in the silencer at bay. Emissions are reduced by fresh air injection into the exhaust system.

The Fiero's CV carburettor is a constant vacuum type that depends on a rubber diaphragm actuated by the air pressure differences on either side to lift the slide and needle to meter air/fuel into the engine. It aids smoothness of throttle response and power delivery, eliminating the usual on/off throttle jerks associated with many traditional slide-and-needle carburettors.

Ignition-wise, the Fiero claims to have the most sophisticated system of the lot. Based on a sensing of the rate of acceleration change, the ignition timing adjusts to either a power mode or one that is designed to deliver the best economy. The validity of both systems is observed in the way that the Fiero performs, abundant torque throughout the entire range of its rpm band and Fuel Efficiency that settles comfortably in the mid-50s overall. The Fiero complies with the existing emissions norms by optimising combustion.

The new Pulsar 150 also breathes through a CV carburettor but relies on a straightforward electronic ignition system to supply the sparks. For emissions compliance, the Pulsar too does not depend on post-combustion help but harnesses the combustion process itself to deliver the reduction in harmful pollutants. The focus on rideability from a power delivery, that starts from the very lower fringes of the band with five well chosen gear ratios adding to the spread of power, make the Pulsar 150 particularly useful in a wide set of riding conditions.