It doesn’t seem that bad to do. I may do it to the 50cc kstar I have and toss it
Out for someone to try……before I destroy a new 70 kit. Probably leave a little more meat between the transfers and finger ports. Ill pull the kit out tonight and see if it is even possible on the 50cc one. 50cc cylinders are harder to cut sometimes because they are smaller and harder to move around inside.