20.5 mm dellorto

I might be getting a 20.5mm dellorto off my friends 125, does ne1 know what size jetting would be needed, so far i have a piggio zip with a tecnigas next r chrome exhaust , polini high flow filter, polini variator, belt, clutch springs and a polini 70cc head (on my standard 50cc barrel) cheers

 

wouldnt bother, will be too big for a 50 kit, on a 70, start with stock 125 jetting and work down.