ok, so anyway, I seem to have my Newport with a MK65 up and running again, but the 15mm bing is really pissing me off. I don't want to buy a new carb, since I have jets from 52 - 92 for bings and I don't want to mess with an intake and new air filter etc... My problem is that I have an 84 jet that works great at WOT (hit 45mph yesterday) but I takes forever to get through the low-end with what feels like bogging and 4 stroking. I have 16x45 gearing, so that shouldn't be my problem. I am using the techno boss, which is high end, but I wouldn't think that is the issue. I have messed with the needle jet and the ring settings and can't get the 1/4 - 3/4 range to do work right. What am I missing?