G'day mate, welcome to the forum. First step, get the variator derestricted, to do this take out the variator boss and get the step machined off, that should put you up to about 70kmh, next remove the rev limiter, to do this bridge the light green and dark green wires on the CDI, that should get you to around 80kmh. These are speeds that were indicated on my speedo, which I have found to be very inacurate, I think kymco like to over state the speed. With my ZX50, I have put on an 82cc cylinder kit which has been a headache to set up and a 24mm carby and 4 reed inlet. Stick around and you will learn a lot.