Pacific Northwest rider. Ran the bike with a couple different jets and needles and came to the same numbers as dibbs in his U.K. Jetting post.
0-5000 ft
70degF day
Motul 800 - 50:1 with premium gas
Power valve 1/2 turn in from flush
Carb float height was verified and is stock
Clean air filter, freshly packed FMF Q-Stealth
40 pilot, Air Screw 1-1/2 turns out
168 main
N2ZJ at clip 3
By far the best and am calling the science project done. On hotter days, I plan on going to clip two on the needle, and 2 turns out on the air screw. And on colder days going the opposite direction.
I found this to be very useful for general carb tuning and what to listen and feel for to figure out if you're too lean or too rich.
https://www.duncanracing.com/TechCenter ... etting.pdf