I was riding my dax titan today and I wondered why it had two hoses coming out like the cns carb for our china girls. Then I realized the hoses are ment for a non venting gas cap. On the china girls, we have a venting gas cap. Maybe our cns problems are due to too much air getting in. I dont run the cns anymore and Im not going to switch back due to not wanting to bother with it. Although with the people using the cns carb I was thinking to cap off both of the hoses and see how it runs. The NT carb has no hoses and runs great. If anyone caps off the hoses on your cns, tests it, and gives us a review it would be appreciated. Lets see if my theory works. Just a thought.