Ryan thanks for your reply.. I have been following the break in procedure as stated in the manual however the engine goes from super rich to super lean (no not the 1/2 tank lean). I wasn't sure and didn't want to do anything wrong so I brought it to the LHS. I let them know I only had 2 tanks through and they said only negative things about the carb and that it wont hold a tune. I assumed they we taking that into consideration. Where should my needle settings be at 2 tanks? Should they be at factory still?