First let me say THANKS to all the advice, suggestions,... and help this site has been over the year. You help encourage me even when my china girl's let me down. Do not know if anyone else has done this, but 48cc is close to 3.0 CI and 66 cc is close to 4.0 CI. What does anyone think? Would it be alright to refer to them as 3 CI and 4 CI engines?