I have successfully disabled the rev limiter on my 2009 Kymco Super 9. Remove the CDI from the bike. Using a hack saw, cut directly down the middle of the CDI opposite of the plugs. Cut a little at a time, connecting the CDI and reving it out while on the center stand. If the rev limiter is still on, cut a little deeper and so forth. You will be amazed at the amount of power the bike will have.
Dennis P. Householder Jr