The throttle on the FZS1000 is quite sensetive, and one the common issues that will make that issue wors is if the drive chain is too slack and/or the cush drive rubbers behind the rear sprocket carrier are worn.
Regarding your suspension, have to checked and set the static sag and then adjusted the damping to suit..?
Regarding your suspension, have to checked and set the static sag and then adjusted the damping to suit..?