For the 05-06 models, could be the same for the others but not sure.....anyways there are two buttons on the left side near the shift light, hold those two buttons down and turn the bike on, wait a few seconds and the shift light will turn on and the RPM will display where your shift indicator range is and I believe its the bottom button you press it will go make the indicator go down or up. Try the bottom first than the top but Im sure its the bottom. Ill double check later. Anyways theres also a way of making the shift light brighter or dimmer or even turning it off using the top buttom, I believe Ill verify. Anyways if you are over your target indicator keep pressing the button and as it hits redline it will go down and if you went to low again keep hitting the button and when it hits a certain mark it will go back up.
Have fun and let me know if you guys have anymore questions!
J5