I'm thinking this: Most two stroke bikes that come with a 19mm dellorto are probably 125cc or so. So it wouldn't surprise me that the stock idle jet might be too large for a moped with a 70 or 80cc kit... But then I see lots of moped peeps running 45's, 48's and even 50's... The other side of the coin is that I've seen a few running idle jets in the 30's...
Personally I'm not even worried about this kit. I have a Gila.
I am only still using this Airsal to get my PHBG tuning skillz wired before I use it on a 300 dollar Gilardoni kit.