oil pump
 

when putting on a 70 cc on how do you know how much to adjust the oil pump.i think ill just premix

Um, I've never had to adjust the oil pump after BBKing a 2-t, usually it's fine.

just found out mine doesn't adjust any way

none of them do, after the big bore kit you should run 16 to 1 for 1 tank, so ad 4 ounces of oil to a gallon of gas and put that in the tank