RPM Restricted CDI on the Yamaha Clic 49cc 4 Stroke Motor Scooter?

I have a 2007 Clic 50cc motor scooter. It is well out of warranty and I want to make some modifications to make it faster. The Clic 4 stroke has an RPM restricted CDI and I need to make it unrestricted to take full advantage of the modifications. Which color wire on the CDI limits the RPM . Thanks.