Changed carb jets to 40 slow, 108 main and went for long ride. My carb idle circuit on this scooter must have really been clogged. Actually, the carb idle circuits on my other scooters are probably clogged up too. Now that I have this carb clean, I keep going to smaller and smaller slow jets. In cool weather 40 slow is close to right, probably could go to 38, but will leave at 40 slow for now. Didn't make any difference in way CVT performed, thought there was a chance might make a difference, but no. Anyway, air screw adjustment is working well now.
When I 1st got one of these scooters air screw didn't seem to have any effect, usually ran it screwed in all the way closed. Now, it makes a huge difference, so that's progress.
Still having issues with CVT dog leg. Really running well, but definitely has a slow spot and drops revs to approx 7000 at approx 40mph from 8000 revs, then climbs back up to 8000 revs. I am close, if can get it to stay above approx 7300 to 7500 revs I think slow spot will go away.
Next I will try three 7.5g sliders and three 7g sliders vs all 7.5g sliders, and see how it goes. I think the grease messed me up, if anything, but wasn't huge difference. Cheers