So tonight I finally drilled out my 12mm BING to a 15.8mm. This was for my Maxi with a 65cc Metra and an estoril techno pipe.
The bigger hole made it so my throttle slide doesn’t move down far enough and my moped idles at a quarter throttle. Its really high. It wont go down any further because the shape of it to the hole.
Also, for some reason I have to keep my choke on until I get to about 32 to 35 I’m guessing or it boggs down. Once I get going 35, I pop the choke off (which I have to do by hand) and go flyin really fast.
So in the end I think I go faster, but I idle ridiculously high and I have to play with the choke as I ride.
Anyone else run into these problems when boring out carbs?