50cc hunter

I just brought a new 50cc hunter and was wondering if anybody could advise me how to Dr restrict it as it is so slow when it sees even a remotly small hill.and will it improve after it' break in period.many thank all

 

What is it?
A scooter?

 

It' a geared road bike lexmoto hunter

 

Ah yes.
Just googled.
Same engine as a monkey/cub.
You can get a bit more power by either opening the ports or using a 70cc bore kit with head.

 

Im actually doing this exact job for a customer now.