Yes. And from what I've been taught here is to start high and work down.
I was easily running a 90 in mine with stock exhaust derestricted with the stock 50cc.
So, ideally you should get an assortment of main jets going from over 100 down to about 90. Put in a large, if it sputters or bogs at wide open, go down a size. After finding one that seems fine, buy several new spark plugs and do a some plug chops.
Time consuming but will determine the life of your scoot.