mikestocks

I've searched the internet for some answers on what the jet size should be for my carb, but to no avail so wondered if anyone else on here could help! I am trying to tune the carb on my 1976 Fantic and just can't get it to run properly. The carb is a Dellorto VHB 27A s - does anyone else have one of these on their Fantic and could tell me how they have it set up? I'm after the main jet, pilot jet and slide size please, I've tried several variations and it doesn't seem to make much difference. Also the fuel/oil mixture that you use would be helpful Thanks in advance, Mike