hello bro, the cbr919 is a carb bike, While a PC3(power commander3) is solely for fuel injection bikes. it is used to change the digital electronic fuel mapping aka air to fuel ratio at diff rpm n send the digital signal to the bikes ecu to instruct how much fuel is feed to the engine.
after fixing a pc3,for best result is to do a dynorun n load the most suitable map for ur bike.
u cant plug a pc3 to a cbr919rr coz it uses a usb interface to connect to the bike,like our digital cam to our pc.
correct me if im wrong... :smile: