Modern sportbikes often use large-bore throttle bodies to generate high levels of power. However, with large-diameter throttles, when a rider suddenly opens the throttle, the unrestricted torque response is anythin
Sound tuning enhances the exhilaration a Kawasaki motorcycle offers by complementing the sensations the rider feels with a carefully crafted auditory component.
Modern sportbikes often use large-bore throttle bodies to generate high levels of power. However, with large-diameter throttles, when a rider suddenly twists the throttle, the unrestricted torque response is anything but gentle, and often more than the rider can handle. Dual throttle valve technology was designed to tame engine response while enabling high performance.
On fuel-injected models, throttle bodies generally have only one throttle valve per cylinder. On models with dual throttle valves, there are two per cylinder: in addition to the main valves, which are physically linked to the throttle grip and controlled by the rider, a second set of valves, controlled by the ECU, precisely regulates intake airflow to ensure a natural, linear response. With the air passing through the throttle bodies flowing smoothly, combustion efficiency is improved and power is increased.
Like other Kawasaki engine management technology, Dual Throttle Valves were designed with the philosophy of "following the rider's intention, while providing natural-feeling support." They are featured on many Kawasaki models.
Kawasaki has long had a reputation for building great-sounding bikes – a characteristic inherent in Kawasaki’s engine architecture – but it is only recently that effort has been put into crafting a specific auditory experience though careful sound tuning of either the intake or exhaust system.
Designed specifically to allow riders to enjoy their motorcycles aurally as well as physically, the carefully crafted auditory notes can be the key components of the street riding exhilaration offered by models that have benefited from sound tuning. Sound tuning can include conducting sound research, designing intake and exhaust system components based on acoustic test carried out in a sound room, and careful consideration of every detail of a system’s components to ensure a balance of performance and the desired sound.