Stock cylinder with milled head
14mm carb, 74 main, 51 slide (no mod) idles good, 2 ring needle on the leanest setting, 2.22 atomizer
K and n type filter
Main is good with good plug chops. Runs about 35-37 wot. My problem is 1/2-3/4 throttle has slight 4 stroke. Still accelerates strong and actually wants to go faster in the mentioned throttle positions. I ride in an area where I have to go at 25 mph and 4 strokes the whole time. I took the filter off and it still 4 strokes.
Should I get a 2.17 atomizer? Different needle? Is this maybe normal due to the pipe? What am I missing?