There is a procedure hidden somewhere in the depths of this forum to sync the throttle bodies on the WC. If I remember correctly you need to;
Turn on bike with throttle closed (do not touch it), wait for the start cycle to complete then turn bike off without starting it. Then open throttle fully and turn on bike, wait for it to go through cycle then turn it off without starting. Finally turn on bike, start it and let it tick over for 3 minutes without touching throttle then turn off.
Someone might be along to correct this if I am wrong but I think this will do the job.