For information, I recently bought a super 8 50. I spoke to UK distributors about restriction methods on this bike and in particular the CDi portion. The super 8 50 has all three restriction methods in place from new here in the UK. The variator boss and carb main jet have been discussed in detail in Chinese Scooter Forum so I wont go over those again. The problem I had was that the CDi on the super 8 50 has 8 (eight) wires not 6 and none of them are "PINK"! Anyway, for anyone wanting to do the de restriction on the CDi what you need to do is open the battery compartment in the footwell (2 phillips screws) and locate the CDi box at the back of the battery. disconnect the multi plug from the box and then carefully strip back the insulation tape around the 8 wires. Then locate the wire that is VIOLET with RED tracer, You will notice there are two, either will do. Ensure you cut it and leave it in such a way as to be able to rejoin it at a later date should it be necessary. This removes the rev limiter circuit on the bike. This on its own gave me 40mph on the flat. PLEASE NOTE: I TAKE NO RESPONSIBILITY IF YOU DECIDE TO DO THIS MODIFICATION TO YOUR BIKE< DAMAGE IT OR WORSE GET POINTS ETC!!
Enjoy!!