I finally got around to working on a stock Ciao I picked up last Summer. It's got a 12.10 SHA on it now, but I have a 12.12 I was going to throw on along with a Tecnigas City Power or Sito Plus. What jetting should I start out with? The 12.12 has a 48 in it now, but I've never ran that carb. The 12.10 has a 66 (previous owner).