Welcome Kymco Owners!
Cut CDI just did mine got 5-7 mph out of it!
You will have to change out the drive boss and a bigger main jet.
I'm new to this jus got me a kymco yesterday an want to derestrict it got a lot of information from here where can I purchase new drive boss an bigger jet from and is there any other restricters on it that need to come off
I see, is that expensive?
engine is gonna be in high revs, top speed will probably remain the same, belt wear will increase and mixture could be lean but uphill will be better.higher revs require more fuel, so, smooth drive boss, 82 jet and then cdi cut. Just my advice